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Android之权限管理
申请权限接口
import java.util.List;
/**
* Description: 权限申请回调接口
* Author: fpp
* Date: 2018/10/8 10:54
*/
public interface PermissionListener {
/**
* 已获取到所需全部权限
*
* @param permissionRequestCode 请求码
*/
void onGranted(int permissionRequestCode);
/**
* 未获取到所需全部权限
*
* @param deniedPermission 被拒绝的权限
* @param permissionRequestCode 请求码
*/
void onDenied(List<String> deniedPermission, int permissionRequestCode);
/**
* 未获取到所需全部权限并勾选不再提醒
*
* @param deniedPermission 勾选了不再询问的权限
* @param permissionRequestCode 请求码
*/
void onShouldShowRationale(List<String> deniedPermission, int permissionRequestCode);
}
BaseActivity中权限申请处理
/**
* 默认请求码
*/
public int mPermissionRequestCode = 10001;
/**
* 权限请求监听接口
*/
private PermissionListener listener;
public void setListener(PermissionListener listener) {
this.listener = listener;
}
/**
* 检测是否有所需权限
*
* @param context
* @param perms 所需权限数组
* @return
*/
public static boolean checkPermissions(@NonNull Context context,
@Size(min = 1) @NonNull String... perms) {
// Always return true for SDK < M, let the system deal with the permissions
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
LogUtil.e("hasPermissions: API version < M, returning true by default");
// DANGER ZONE!!! Changing this will break the library.
return true;
}
// Null context may be passed if we have detected Low API (less than M) so getting
// to this point with a null context should not be possible.
if (context == null) {
throw new IllegalArgumentException("Can't check permissions for null context");
}
for (String perm : perms) {
if (ContextCompat.checkSelfPermission(context, perm)
!= PackageManager.PERMISSION_GRANTED) {
return false;
}
}
return true;
}
/**
* 申请权限
*
* @param requestCode 请求码
* @param permissions 需要申请的权限
*/
@TargetApi(Build.VERSION_CODES.M)
public void requestPermissions(int requestCode, @NonNull String[] permissions) {
mPermissionRequestCode = requestCode;
List<String> requestPermissionList = new ArrayList<>();
//查找未获取的权限
for (String permission : permissions) {
if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
requestPermissionList.add(permission);
}
}
if (requestPermissionList.isEmpty()) {
//已获取所有请求权限
permissionAllGranted(mPermissionRequestCode);
} else {
//获取权限
requestPermissions(requestPermissionList.toArray(
new String[requestPermissionList.size()]), mPermissionRequestCode);
}
}
/**
* 申请权限结果
*
* @param requestCode 请求码 要等于申请时候的请求码
* @param permissions 申请的权限数组
* @param grantResults 对应权限的处理结果
*/
@RequiresApi(api = Build.VERSION_CODES.M)
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode != mPermissionRequestCode) {
return;
}
if (grantResults.length > 0) {
List<String> deniedPermissionList = new ArrayList<String>();
for (int i = 0; i < grantResults.length; i++) {
if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
deniedPermissionList.add(permissions[i]);
}
}
if (deniedPermissionList.isEmpty()) {
//已获取全部所需权限
permissionAllGranted(mPermissionRequestCode);
} else {
//勾选了“禁止后不在询问”选项, 返回false
for (String deniedPermission : deniedPermissionList) {
boolean flag = shouldShowRequestPermissionRationale(deniedPermission);
if (!flag) {
// 未获取到权限 并勾选了不再询问选项
permissionShouldShowRationale(deniedPermissionList, mPermissionRequestCode);
return;
}
}
// 未获取到所需全部权限
permissionHasDenied(deniedPermissionList, mPermissionRequestCode);
}
}
}
/**
* 获取应用详情页面intent（如果找不到要跳转的界面，也可以先把用户引导到系统设置页面）
*
* @return
*/
public Intent getAppDetailSettingIntent() {
Intent localIntent = new Intent();
localIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (Build.VERSION.SDK_INT >= 9) {
localIntent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
localIntent.setData(Uri.fromParts("package", getPackageName(), null));
} else if (Build.VERSION.SDK_INT <= 8) {
localIntent.setAction(Intent.ACTION_VIEW);
localIntent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");
localIntent.putExtra("com.android.settings.ApplicationPkgName", getPackageName());
}
return localIntent;
}
/**
* 已获取所需全部权限
*
* @param permissionRequestCode 获取权限请求码
*/
private void permissionAllGranted(int permissionRequestCode) {
if (listener != null) {
listener.onGranted(permissionRequestCode);
}
}
/**
* 未获取到所需全部权限
*
* @param deniedList 未获取到的权限
* @param permissionRequestCode 获取权限请求码
*/
private void permissionHasDenied(List<String> deniedList, int permissionRequestCode) {
if (listener != null) {
listener.onDenied(deniedList, permissionRequestCode);
}
}
/**
* 未获取到相关权限并且勾选了不再询问
*
* @param deniedList 勾选了不在询问的权限
* @param permissionRequestCode 获取权限请求码
*/
private void permissionShouldShowRationale(List<String> deniedList, int permissionRequestCode) {
if (listener != null) {
listener.onShouldShowRationale(deniedList, permissionRequestCode);
}
}
权限申请处理应用
- 权限申请监听设置
this.setListener(new PermissionListener() {
// 申请到所需全部权限
@Override
public void onGranted(int permissionRequestCode) {
if (mPermissionRequestCode == permissionRequestCode){
UIUtil.toast("已获取到相关权限！进行后续操作！");
}
}
// 未申请到所需全部权限
@Override
public void onDenied(List<String> deniedPermission, int permissionRequestCode) {
if (mPermissionRequestCode == permissionRequestCode){
UIUtil.toast("未获取到相关权限！不能进行后续操作！");
}
}
// 未申请到所需全部权限，并存在部分权限勾选了不再提示选项。
@Override
public void onShouldShowRationale(List<String> deniedPermission, int permissionRequestCode) {
if (mPermissionRequestCode == permissionRequestCode){
// 跳转到应用详情，进行权限设置
startActivity(getAppDetailSettingIntent());
}
}
});
- 申请权限
// 没有权限，去申请
requestPermissions(mPermissionRequestCode,perms);