android 权限库,拿来就能用

mainfest.xml先声明你需要得到的权限。

使用方式：

package com.example.huangrenqian833.myapplication;

import android.Manifest;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;

import com.example.huangrenqian833.myapplication.permission.GetPermission;
import com.example.huangrenqian833.myapplication.permission.module.PermissionResultListener;

/**
 * Created by huangrenqian833 on 2018/12/24.
 */

public class TestPermissionActivity extends AppCompatActivity implements PermissionResultListener {
    public static final int PERMISSION_REQUE_CAMERA_AND_RECORD_CODE = 116;
    public static final int PERMISSION_REQUE_CAMERA_CODE = 115;
    public static final int PERMISSION_REQUE_PHOTO_VIDEO = 114;
    public static final int PERMISSION_LOCATION_CODE = 118;
    private static final String[] PERMISSIONS_LOCATION = new String[]{Manifest.permission.ACCESS_COARSE_LOCATION,
            Manifest.permission.ACCESS_FINE_LOCATION};
    private static final int PERMISSION_OPEN_SDK = 119;
    private static final int PERMISSION_OPEN_READ_SDK = 120;
    private static final int PERMISSION_SELECT_FILE = 121;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        findViewById(R.id.email_sign_in_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                GetPermission.with(TestPermissionActivity.this)
                        .permissions(PERMISSIONS_LOCATION)
                        .requestCode(PERMISSION_LOCATION_CODE)
                        .listener(TestPermissionActivity.this)
                        .request();
            }
        });
        findViewById(R.id.email_sign_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                GetPermission.with(TestPermissionActivity.this)
                        .permissions(Manifest.permission.CAMERA)
                        .requestCode(PERMISSION_REQUE_CAMERA_CODE)
                        .listener(TestPermissionActivity.this)
                        .request();
            }
        });
        findViewById(R.id.email_sign_out_button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                GetPermission.with(TestPermissionActivity.this)
                        .permissions(Manifest.permission.WRITE_EXTERNAL_STORAGE)
                        .requestCode(PERMISSION_SELECT_FILE)
                        .listener(TestPermissionActivity.this)
                        .request();
            }
        });
    }

    /**
     * 建议在BaseActivity/BaseFragment加这个方法
     *
     * @param requestCode  requestCode
     * @param permissions  permissions
     * @param grantResults grantResults
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        GetPermission.onRequestPermissionResult(this, requestCode, permissions, grantResults);
    }

    /**
     * 建议在BaseActivity/BaseFragment加这个方法
     *
     * @param requestCode requestCode
     * @param resultCode  resultCode
     * @param data        data
     */
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        GetPermission.onActivityResult(this, requestCode, resultCode, data);
    }

    @Override
    public void onPermissionSuccess(int requestCode) {
        if (PERMISSION_REQUE_CAMERA_AND_RECORD_CODE == requestCode) {//相机与录音
            Log.e("TestPermissionActivity", "获得相机与录音权限");
        } else if (PERMISSION_REQUE_CAMERA_CODE == requestCode) {//相机
            Log.e("TestPermissionActivity", "获得相机权限");
        } else if (PERMISSION_REQUE_PHOTO_VIDEO == requestCode) {//录制视频
            Log.e("TestPermissionActivity", "获得录制视频权限");
        } else if (PERMISSION_OPEN_SDK == requestCode) {//选择视频
            Log.e("TestPermissionActivity", "获得选择视频权限");
        } else if (PERMISSION_SELECT_FILE == requestCode) {//选择文件
            Log.e("TestPermissionActivity", "获得选择文件权限");
        } else if (PERMISSION_LOCATION_CODE == requestCode) {//定位
            Log.e("TestPermissionActivity", "获得定位权限");
        }
    }

    @Override
    public void onPermissionShouldShow(int requestCode) {
        if (PERMISSION_REQUE_CAMERA_AND_RECORD_CODE == requestCode) {//相机与录音
            Log.e("TestPermissionActivity", "拒绝将无法获得相机与录音权限");
        } else if (PERMISSION_REQUE_CAMERA_CODE == requestCode) {//相机
            Log.e("TestPermissionActivity", "拒绝将无法获得相机权限");
        } else if (PERMISSION_REQUE_PHOTO_VIDEO == requestCode) {//录制视频
            Log.e("TestPermissionActivity", "拒绝将无法获得录制视频权限");
        } else if (PERMISSION_OPEN_SDK == requestCode) {//选择视频
            Log.e("TestPermissionActivity", "拒绝将无法获得选择视频权限");
        } else if (PERMISSION_SELECT_FILE == requestCode) {//选择文件
            Log.e("TestPermissionActivity", "拒绝将无法获得选择文件权限");
        } else if (PERMISSION_LOCATION_CODE == requestCode) {//定位
            Log.e("TestPermissionActivity", "拒绝将无法获得定位权限");
        }
    }

    @Override
    public void onPermissionFail(int requestCode) {
        if (PERMISSION_REQUE_CAMERA_AND_RECORD_CODE == requestCode) {//相机与录音
            Log.e("TestPermissionActivity", "获得相机与录音权限失败");
        } else if (PERMISSION_REQUE_CAMERA_CODE == requestCode) {//相机
            Log.e("TestPermissionActivity", "获得相机权限失败");
        } else if (PERMISSION_REQUE_PHOTO_VIDEO == requestCode) {//录制视频
            Log.e("TestPermissionActivity", "获得录制视频权限失败");
        } else if (PERMISSION_OPEN_SDK == requestCode) {//选择视频
            Log.e("TestPermissionActivity", "获得选择视频权限失败");
        } else if (PERMISSION_SELECT_FILE == requestCode) {//选择文件
            Log.e("TestPermissionActivity", "获得选择文件权限失败");
        } else if (PERMISSION_LOCATION_CODE == requestCode) {//定位
            Log.e("TestPermissionActivity", "获得定位权限失败");
        }
    }
}

代码结构：

com.example.huangrenqian833.myapplication

.annotation

.builder

.module

.uitls

package com.example.huangrenqian833.myapplication.permission.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * 请求权限失败，勾选了不再提醒，无法再次拉起系统弹框，需要自行处理结果
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface PermissionFail {

    int requestCode();

}

package com.example.huangrenqian833.myapplication.permission.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * 请求权限成功
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface PermissionSuccess {
    int requestCode();
}

package com.example.huangrenqian833.myapplication.permission.annotation;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * 用来注解未勾选不再提醒，下次还可以请求权限系统弹框
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface PermissionShouldShow {
    int requestCode();
}

package com.example.huangrenqian833.myapplication.permission.builder;

import android.annotation.TargetApi;
import android.app.Activity;
import android.os.Build;

/**
 * ActivityPermissionBuilder
 */
public class ActivityPermissionBuilder extends BasePermissionBuilder<Activity> {


    public ActivityPermissionBuilder(Activity object) {
        super(object);
    }

    @TargetApi(Build.VERSION_CODES.M)
    @Override
    protected void requestPermission(int requestCode, String[] permissions) {
        object.requestPermissions(permissions, requestCode);
    }


    @Override
    protected Activity getActivity() {
        return object;
    }
}

package com.example.huangrenqian833.myapplication.permission.builder;

import android.annotation.TargetApi;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.provider.Settings;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;

import com.example.huangrenqian833.myapplication.R;
import com.example.huangrenqian833.myapplication.permission.module.PermissionListenerManager;
import com.example.huangrenqian833.myapplication.permission.module.PermissionResultListener;
import com.example.huangrenqian833.myapplication.permission.uitls.AnnotationUtil;
import com.example.huangrenqian833.myapplication.permission.uitls.SPUtil;

import java.util.List;

/**
 * BasePermissionBuilder
 */
public abstract class BasePermissionBuilder<T> {

    private String[] permissions;
    private int requestCode;
    protected T object;
    private PermissionResultListener listener;

    public BasePermissionBuilder(T object) {
        this.object = object;
    }

    public BasePermissionBuilder permissions(String... permissions) {
        this.permissions = permissions;
        return this;
    }

    public BasePermissionBuilder requestCode(int requestCode) {
        this.requestCode = requestCode;
        return this;
    }

    public BasePermissionBuilder listener(PermissionResultListener listener) {
        this.listener = listener;
        return this;
    }

    public void request() {
        if (permissions == null || permissions.length == 0) {
            Log.e("BasePermissionBuilder", "permissions is empty !!!");
            return;
        }
        if (object == null) {
            Log.e("BasePermissionBuilder", "object is null !!!");
            return;
        }
        if (!AnnotationUtil.isOverMarshmallow()) {
            doPermissionSuccess();
            return;
        }
        //如果权限组中有悬浮框权限，则需要走悬浮框权限逻辑，否则参考正常逻辑处理
        String systemAlertWindow = AnnotationUtil.getSystemAlertWindow(permissions);
        if (!TextUtils.isEmpty(systemAlertWindow)) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                if (Settings.canDrawOverlays(getActivity())) {
                    doPermissionSuccess();
                } else {
                    openDrawOverlaysDialog(systemAlertWindow);
                }
            }
            String[] newPermission = AnnotationUtil.getNewPermission(permissions, systemAlertWindow);
            if (newPermission == null || newPermission.length == 0) {
                return;
            }
            requestPermission(newPermission);
        } else {
            requestPermission(permissions);
        }
    }

    private void openDrawOverlaysDialog(final String permission) {
        boolean isShowing = SPUtil.getBoolean(getActivity(), SPUtil.SP_NAME_PERMISSION, SPUtil.SP_KEY_PERMISSION_DRAW_OVERLAYS, false);
        if (!isShowing) {
            View view = LayoutInflater.from(getActivity()).inflate(R.layout.dialog_draw_overlays, null);
            CheckBox checkBox = view.findViewById(R.id.dialog_cb);
            checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                @Override
                public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                    SPUtil.putBoolean(getActivity(), SPUtil.SP_NAME_PERMISSION, SPUtil.SP_KEY_PERMISSION_DRAW_OVERLAYS, isChecked);
                }
            });
            new AlertDialog.Builder(getActivity())
                    .setTitle("提示")
                    .setView(view)
                    .setNegativeButton("取消", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            dialog.dismiss();
                        }
                    })
                    .setPositiveButton("确定", new DialogInterface.OnClickListener() {
                        @Override
                        public void onClick(DialogInterface dialog, int which) {
                            PermissionListenerManager.getInstance().addListener(requestCode, listener);
                            PermissionListenerManager.getInstance().addPermission(requestCode, permission);
                            Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
                                    Uri.parse("package:" + getActivity().getPackageName()));
                            getActivity().startActivityForResult(intent, requestCode);
                        }
                    }).create()
                    .show();
        } else {
            doPermissionFail();
        }
    }

    /**
     * 请求权限
     *
     * @param permissions
     */
    private void requestPermission(String[] permissions) {
        List<String> deniedPermissions = AnnotationUtil.findDeniedPermissions(getActivity(), permissions);
        if (deniedPermissions != null && deniedPermissions.size() > 0) {
            PermissionListenerManager.getInstance().addListener(requestCode, listener);
            requestPermission(requestCode, deniedPermissions.toArray(new String[deniedPermissions.size()]));
        } else {
            doPermissionSuccess();
        }
    }

    private void doPermissionSuccess() {
        if (listener != null) {
            listener.onPermissionSuccess(requestCode);
        } else {
            AnnotationUtil.doExecuteSuccess(object, requestCode);
        }
    }

    private void doPermissionFail() {
        if (listener != null) {
            listener.onPermissionFail(requestCode);
        } else {
            AnnotationUtil.doExecuteFail(object, requestCode);
        }
    }

    @TargetApi(Build.VERSION_CODES.M)
    protected abstract void requestPermission(int requestCode, String[] permissions);

    protected abstract Activity getActivity();


}

package com.example.huangrenqian833.myapplication.permission.builder;

import android.annotation.TargetApi;
import android.app.Activity;
import android.app.Fragment;
import android.os.Build;

/**
 * FragmentPermissionBuilder
 */
@Deprecated
public class FragmentPermissionBuilder extends BasePermissionBuilder<Fragment>{
    public FragmentPermissionBuilder(Fragment object) {
        super(object);
    }

    @TargetApi(Build.VERSION_CODES.M)
    @Override
    protected void requestPermission(int requestCode, String[] permissions) {
        object.requestPermissions(permissions, requestCode);
    }

    @Override
    protected Activity getActivity() {
        return object.getActivity();
    }
}

package com.example.huangrenqian833.myapplication.permission.builder;

import android.annotation.TargetApi;
import android.app.Activity;
import android.os.Build;
import android.support.v4.app.Fragment;

/**
 * FragmentV4PermissionBuilder
 */
public class FragmentV4PermissionBuilder extends BasePermissionBuilder<Fragment> {

    public FragmentV4PermissionBuilder(Fragment object) {
        super(object);
    }

    @TargetApi(Build.VERSION_CODES.M)
    @Override
    protected void requestPermission(int requestCode, String[] permissions) {
        object.requestPermissions(permissions, requestCode);
    }

    @Override
    protected Activity getActivity() {
        return object.getActivity();
    }

}

package com.example.huangrenqian833.myapplication.permission.module;

import android.text.TextUtils;

import java.lang.ref.WeakReference;
import java.util.HashMap;

/**
 * PermissionListenerManager
 */
public class PermissionListenerManager {

    private static PermissionListenerManager instance;
    private volatile HashMap<Integer, WeakReference<PermissionResultListener>> listeners = new HashMap<>();
    private volatile HashMap<Integer, String> permissions = new HashMap<>();

    public static PermissionListenerManager getInstance() {
        if (instance == null) {
            synchronized (PermissionListenerManager.class) {
                if (instance == null) {
                    instance = new PermissionListenerManager();
                }
            }
        }
        return instance;
    }


    public synchronized PermissionResultListener getListener(int requestCode) {
        WeakReference<PermissionResultListener> weakReference = listeners.get(requestCode);
        if (weakReference != null) {
            return weakReference.get();
        }
        return null;
    }

    /**
     * 使用弱引用保存对象
     *
     * @param requestCode
     * @param listener
     */
    public synchronized void addListener(int requestCode, PermissionResultListener listener) {
        if (listener != null) {
            listeners.put(requestCode, new WeakReference<>(listener));
        }
    }

    public synchronized void removeListener(int requestCode) {
        listeners.remove(requestCode);
    }

    public synchronized void cleanListener() {
        listeners.clear();
    }

    public synchronized String getPermission(int requestCode) {
        return permissions.get(requestCode);
    }

    public synchronized void addPermission(int requestCode, String permission) {
        if (!TextUtils.isEmpty(permission)) {
            permissions.put(requestCode, permission);
        }
    }

    public synchronized void removePermission(int requestCode) {
        permissions.remove(requestCode);
    }

    public synchronized void cleanPermission() {
        permissions.clear();
    }

}

package com.example.huangrenqian833.myapplication.permission.module;

/**
 * 权限结果监听
 */
public interface PermissionResultListener {

    /**
     * 授权成功
     *
     * @param requestCode
     */
    void onPermissionSuccess(int requestCode);

    /**
     * 授权失败，未勾选不再提醒，还可以继续弹出系统权限框
     *
     * @param requestCode
     */
    void onPermissionShouldShow(int requestCode);

    /**
     * 授权失败，勾选不再提醒，无法拉起系统权限框
     *
     * @param requestCode
     */
    void onPermissionFail(int requestCode);

}

package com.example.huangrenqian833.myapplication.permission.uitls;

import android.Manifest;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Build;
import android.support.v4.content.ContextCompat;

import com.example.huangrenqian833.myapplication.permission.annotation.PermissionFail;
import com.example.huangrenqian833.myapplication.permission.annotation.PermissionShouldShow;
import com.example.huangrenqian833.myapplication.permission.annotation.PermissionSuccess;

import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

/**
 * AnnotationUtil
 */
public class AnnotationUtil {

    public static boolean checkPermission(Context context, String permission) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            return ContextCompat.checkSelfPermission(context, permission) != PackageManager.PERMISSION_GRANTED;
        }
        return true;
    }

    public static boolean isOverMarshmallow() {
        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
    }

    @TargetApi(value = Build.VERSION_CODES.M)
    public static List<String> findDeniedPermissions(Activity activity, String[] permissions) {
        List<String> denyPermissions = null;
        if (permissions != null) {
            denyPermissions = new ArrayList<>();
            for (String p : permissions) {
                if (checkPermission(activity, p)) {
                    denyPermissions.add(p);
                }
            }
        }
        return denyPermissions;
    }

    public static String getSystemAlertWindow(String[] permissions) {
        if (permissions != null) {
            for (String p : permissions) {
                if (Manifest.permission.SYSTEM_ALERT_WINDOW.equals(p)) {
                    return p;
                }
            }
        }
        return null;
    }

    /**
     * @param permissions       权限列表
     * @param removePermissions 需要移除的权限
     * @return
     */
    public static String[] getNewPermission(String[] permissions, String... removePermissions) {
        if (permissions != null && removePermissions != null) {
            List<String> ps = new ArrayList();
            for (int i = 0; i < permissions.length; i++) {
                ps.add(permissions[i]);
            }
            List<String> rps = new ArrayList<>();
            for (int i = 0; i < removePermissions.length; i++) {
                rps.add(removePermissions[i]);
            }
            for (int i = ps.size(); i > 0; i--) {
                String pss = ps.get(i - 1);
                for (int j = rps.size(); j > 0; j--) {
                    String rpss = rps.get(j - 1);
                    if (pss.equals(rpss)) {
                        ps.remove(i - 1);
                        rps.remove(j - 1);
                    }
                }
            }
            if (ps.size() > 0) {
                permissions = ps.toArray(new String[ps.size()]);
            } else {
                permissions = null;
            }
        }
        return permissions;
    }


    public static <A extends Annotation> Method findMethodWithRequestCode(Class<?> aClass, Class<A> annotation, int requestCode) {
        for (Method method : aClass.getDeclaredMethods()) {
            if (method.isAnnotationPresent(annotation)) {
                if (isEqualRequestCodeFromAnnotation(method, annotation, requestCode)) {
                    return method;
                }
            }
        }
        return null;
    }

    private static <A extends Annotation> boolean isEqualRequestCodeFromAnnotation(Method method, Class<A> annotation, int requestCode) {
        if (annotation.equals(PermissionFail.class)) {
            return requestCode == method.getAnnotation(PermissionFail.class).requestCode();
        } else if (annotation.equals(PermissionShouldShow.class)) {
            return requestCode == method.getAnnotation(PermissionShouldShow.class).requestCode();
        } else if (annotation.equals(PermissionSuccess.class)) {
            return requestCode == method.getAnnotation(PermissionSuccess.class).requestCode();
        }
        return false;
    }

    public static void doExecuteSuccess(Object object, int requestCode) {
        Method executeMethod = AnnotationUtil.findMethodWithRequestCode(object.getClass(), PermissionSuccess.class, requestCode);
        executeMethod(object, executeMethod);
    }

    public static void doExecuteShouldShow(Object object, int requestCode) {
        Method executeMethod = AnnotationUtil.findMethodWithRequestCode(object.getClass(), PermissionShouldShow.class, requestCode);
        executeMethod(object, executeMethod);
    }

    public static void doExecuteFail(Object object, int requestCode) {
        Method executeMethod = AnnotationUtil.findMethodWithRequestCode(object.getClass(), PermissionFail.class, requestCode);
        executeMethod(object, executeMethod);
    }

    private static void executeMethod(Object object, Method executeMethod) {
        try {
            if (executeMethod != null) {
                if (!executeMethod.isAccessible()) {
                    executeMethod.setAccessible(true);
                }
                executeMethod.invoke(object);
            }
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

package com.example.huangrenqian833.myapplication.permission.uitls;

import android.content.Context;
import android.content.SharedPreferences;
import android.support.annotation.NonNull;

/**
 * SPUtil
 */
public class SPUtil {
    /**
     * 权限状态sp文件
     */
    public static final String SP_NAME_PERMISSION = "name_permission";

    public static final String SP_KEY_PERMISSION_DRAW_OVERLAYS = "key_draw_overlays";


    public static void putBoolean(@NonNull Context context, @NonNull String name, @NonNull String key, boolean bol) {
        SharedPreferences sp = context.getSharedPreferences(name, Context.MODE_PRIVATE);
        sp.edit()
                .putBoolean(key, bol)
                .commit();
    }

    public static void getBoolean(@NonNull Context context, @NonNull String name, @NonNull String key) {
        getBoolean(context, name, key, false);
    }

    public static boolean getBoolean(@NonNull Context context, @NonNull String name, @NonNull String key, boolean defBol) {
        SharedPreferences sp = context.getSharedPreferences(name, Context.MODE_PRIVATE);
        return sp.getBoolean(key, defBol);
    }
}

package com.example.huangrenqian833.myapplication.permission;

import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Build;
import android.provider.Settings;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.text.TextUtils;

import com.example.huangrenqian833.myapplication.permission.builder.ActivityPermissionBuilder;
import com.example.huangrenqian833.myapplication.permission.builder.FragmentPermissionBuilder;
import com.example.huangrenqian833.myapplication.permission.builder.FragmentV4PermissionBuilder;
import com.example.huangrenqian833.myapplication.permission.module.PermissionListenerManager;
import com.example.huangrenqian833.myapplication.permission.module.PermissionResultListener;
import com.example.huangrenqian833.myapplication.permission.uitls.AnnotationUtil;
import com.example.huangrenqian833.myapplication.permission.uitls.SPUtil;

import java.util.ArrayList;
import java.util.List;

/**
 * 权限入口
 * 这里提供了两种实现方式，具体使用方法可见demo
 * 方法一：注解方法的形式
 * 方法二：监听回调的方式
 */
public class GetPermission {

    public static ActivityPermissionBuilder with(Activity activity) {
        return new ActivityPermissionBuilder(activity);
    }

    public static FragmentV4PermissionBuilder with(Fragment fragment) {
        return new FragmentV4PermissionBuilder(fragment);
    }

    @Deprecated
    public static FragmentPermissionBuilder with(android.app.Fragment fragment) {
        return new FragmentPermissionBuilder(fragment);
    }

    public static void onRequestPermissionResult(Activity activity, int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        onRequestResult(activity, requestCode, permissions, grantResults);
    }

    public static void onRequestPermissionResult(Fragment fragment, int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        onRequestResult(fragment, requestCode, permissions, grantResults);
    }

    @Deprecated
    public static void onRequestPermissionResult(android.app.Fragment fragment, int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        onRequestResult(fragment, requestCode, permissions, grantResults);
    }

    /**
     * 处理响应权限结果
     *
     * @param object
     * @param requestCode
     * @param permissions
     * @param grantResults
     */
    private static void onRequestResult(Object object, int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        List<String> deniedPermissions = new ArrayList<>();
        if (grantResults != null) {
            for (int i = 0; i < grantResults.length; i++) {
                if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
                    deniedPermissions.add(permissions[i]);
                }
            }
        }
        //获取到listener对象以后，从PermissionListenerManager中移除listener
        PermissionResultListener listener = PermissionListenerManager.getInstance().getListener(requestCode);
        if (listener != null) {
            PermissionListenerManager.getInstance().removeListener(requestCode);
        }
        if (deniedPermissions.size() > 0) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                Activity activity = getActivity(object);
                boolean flag = true;
                int size = deniedPermissions.size();
                for (int i = 0; i < size; i++) {
                    flag = flag && activity.shouldShowRequestPermissionRationale(deniedPermissions.get(i));
                }
                if (flag) {
                    if (listener != null) {
                        listener.onPermissionShouldShow(requestCode);
                    } else {
                        AnnotationUtil.doExecuteShouldShow(object, requestCode);
                    }
                } else {
                    if (listener != null) {
                        listener.onPermissionFail(requestCode);
                    } else {
                        AnnotationUtil.doExecuteFail(object, requestCode);
                    }
                }
            }
        } else {
            if (listener != null) {
                listener.onPermissionSuccess(requestCode);
            } else {
                AnnotationUtil.doExecuteSuccess(object, requestCode);

            }
        }
    }

    private static Activity getActivity(Object object) {
        if (object instanceof Activity) {
            return (Activity) object;
        } else if (object instanceof Fragment) {
            return ((Fragment) object).getActivity();
        } else if (object instanceof android.app.Fragment) {
            return ((android.app.Fragment) object).getActivity();
        }
        throw new RuntimeException("object type is error !");
    }

    public static void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data) {
        onResult(activity, requestCode, resultCode, data);
    }

    public static void onActivityResult(Fragment activity, int requestCode, int resultCode, Intent data) {
        onResult(activity, requestCode, resultCode, data);
    }

    public static void onActivityResult(android.app.Fragment activity, int requestCode, int resultCode, Intent data) {
        onResult(activity, requestCode, resultCode, data);
    }

    private static void onResult(Object object, int requestCode, int resultCode, Intent data) {
        String permission = PermissionListenerManager.getInstance().getPermission(requestCode);
        if (!TextUtils.isEmpty(permission)) {
            PermissionListenerManager.getInstance().removePermission(requestCode);
            //悬浮窗口权限
            if (Manifest.permission.SYSTEM_ALERT_WINDOW.equals(permission)) {
                boolean isShowing = SPUtil.getBoolean(getActivity(object), SPUtil.SP_NAME_PERMISSION, SPUtil.SP_KEY_PERMISSION_DRAW_OVERLAYS, false);
                PermissionResultListener listener = PermissionListenerManager.getInstance().getListener(requestCode);
                if (listener != null) {
                    PermissionListenerManager.getInstance().removeListener(requestCode);
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                        if (Settings.canDrawOverlays(getActivity(object))) {
                            listener.onPermissionSuccess(requestCode);
                        } else {
                            if (!isShowing) {
                                listener.onPermissionShouldShow(requestCode);
                            } else {
                                listener.onPermissionFail(requestCode);
                            }
                        }
                    } else {
                        listener.onPermissionSuccess(requestCode);
                    }
                } else {
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                        if (Settings.canDrawOverlays(getActivity(object))) {
                            AnnotationUtil.doExecuteSuccess(object, requestCode);
                        } else {
                            if (!isShowing) {
                                AnnotationUtil.doExecuteShouldShow(object, requestCode);
                            } else {
                                AnnotationUtil.doExecuteFail(object, requestCode);
                            }
                        }
                    } else {
                        AnnotationUtil.doExecuteSuccess(object, requestCode);
                    }
                }
            }
        }
    }
}

dialog_draw_overlays

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/dialog_message"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="24dp"
        android:layout_marginRight="24dp"
        android:layout_marginTop="16dp"
        android:text="显示桌面悬浮窗需要 DrawOverlays 权限" />

    <CheckBox
        android:id="@+id/dialog_cb"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginTop="16dp"
        android:checked="false"
        android:text="不再提醒" />

</LinearLayout>

android 权限库,拿来就能用

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