布局======================================================================
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <RelativeLayout android:id="@+id/reative_01" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:padding="20dp" android:text="个人信息" android:textSize="26sp" android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" /> <View android:background="#000" android:visibility="visible" android:layout_height="1dp" android:layout_below="@+id/text" android:layout_width="match_parent"></View> </RelativeLayout> <RelativeLayout android:id="@+id/reative_02" android:layout_below="@+id/reative_01" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:text="头像" android:padding="20dp" android:textSize="26sp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_centerVertical="true"/> <ImageView android:padding="20dp" android:scaleType="fitXY" android:id="@+id/headPhoto" android:layout_width="118dp" android:layout_height="118dp" android:src="@mipmap/ic_launcher" android:layout_centerVertical="true" android:layout_alignParentRight="true" /> </RelativeLayout> <View android:background="#000" android:visibility="visible" android:layout_height="1dp" android:layout_below="@+id/reative_02" android:layout_width="match_parent"></View> <RelativeLayout android:id="@+id/reative_03" android:layout_below="@+id/reative_02" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:text="用户名" android:padding="20dp" android:textSize="26sp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_centerVertical="true"/> <TextView android:text="你家大林哥" android:padding="20dp" android:id="@+id/userName" android:textColor="#a9aab2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_alignParentRight="true"/> </RelativeLayout> <View android:background="#000" android:layout_height="1dp" android:visibility="visible" android:layout_below="@+id/reative_03" android:layout_width="match_parent"></View> <RelativeLayout android:id="@+id/reative_04" android:layout_below="@+id/reative_03" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:text="昵称" android:padding="20dp" android:textSize="26sp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_centerVertical="true"/> <EditText android:text="kson" android:padding="20dp" android:id="@+id/niCheng" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_alignParentRight="true"/> </RelativeLayout> <View android:id="@+id/view" android:background="#000" android:visibility="visible" android:layout_height="1dp" android:layout_below="@+id/reative_04" android:layout_width="match_parent"></View> <Button android:text="从相册选取" android:id="@+id/selectPhoto" android:background="#1E90FF" android:layout_marginTop="88dp" android:layout_marginBottom="2dp" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_above="@+id/takePhoto" android:layout_centerHorizontal="true" /> <Button android:text="拍照" android:id="@+id/takePhoto" android:background="#1E90FF" android:layout_marginBottom="50dp" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_alignParentBottom="true" /> <Button android:text="取消" android:id="@+id/cancel" android:background="#1E90FF" android:layout_marginTop="88dp" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_alignParentBottom="true"/> </RelativeLayout>
代码========================================================================
MainActivity===================================================================
package com.example.day0522; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.Environment; import android.provider.MediaStore; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Base64; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.Toast; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.IOException; import java.util.HashMap; import java.util.Map; import butterknife.ButterKnife; import okhttp3.Request; public class MainActivity extends AppCompatActivity implements View.OnClickListener { private static final int PHOTO_REQUEST_CAREMA = 1; private static final int PHOTO_REQUEST_GALLEE = 2; private static final int PHOTO_REQUEST_CUT = 3; private static final String PHOTO_FILE_NAME = "c" ; private File tempFile; private Button selectPhoto; private Button takePhoto; private Button cancel; private EditText niCheng; private ImageView headPhoto; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); //从SharedPreferences获取图片 ButterKnife.bind(this); //重新设置用户昵称 niCheng.setText(niCheng.getText().toString()); } private void initView() { selectPhoto = findViewById(R.id.selectPhoto); takePhoto = findViewById(R.id.takePhoto); cancel = findViewById(R.id.cancel); niCheng = findViewById(R.id.niCheng); headPhoto = findViewById(R.id.headPhoto); headPhoto.setOnClickListener(this); selectPhoto.setOnClickListener(this); takePhoto.setOnClickListener(this); cancel.setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()){ case R.id.takePhoto: // 激活相机 Intent intent = new Intent("android.media.action.IMAGE_CAPTURE"); // 判断存储卡是否可以用，可用进行存储 if (hasSdcard()) { tempFile = new File(Environment.getExternalStorageDirectory(), PHOTO_FILE_NAME); // 从文件中创建uri Uri uri = Uri.fromFile(tempFile); intent.putExtra(MediaStore.EXTRA_OUTPUT, uri); } // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CAREMA startActivityForResult(intent, PHOTO_REQUEST_CAREMA); break; case R.id.selectPhoto: // 激活系统图库，选择一张图片 Intent intent1 = new Intent(Intent.ACTION_PICK); intent1.setType("image/*"); // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_GALLERY startActivityForResult(intent1, PHOTO_REQUEST_GALLEE); break; case R.id.cancel: Toast.makeText(MainActivity.this,"已取消操作",Toast.LENGTH_SHORT).show(); break; default: break; } } //判断sdcard是否被挂载 private boolean hasSdcard() { //判断ＳＤ卡手否是安装好的 media_mounted if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) { return true; } else { return false; } } private void crop(Uri uri) { // 裁剪图片意图 Intent intent = new Intent("com.android.camera.action.CROP"); intent.setDataAndType(uri, "image/*"); intent.putExtra("crop", "true"); // 裁剪框的比例，1：1 intent.putExtra("aspectX", 1); intent.putExtra("aspectY", 1); // 裁剪后输出图片的尺寸大小 intent.putExtra("outputX", 250); intent.putExtra("outputY", 250); intent.putExtra("outputFormat", "JPEG");// 图片格式 intent.putExtra("noFaceDetection", true);// 取消人脸识别 intent.putExtra("return-data", true); // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CUT startActivityForResult(intent, PHOTO_REQUEST_CUT); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == PHOTO_REQUEST_GALLEE) { // 从相册返回的数据 if (data != null) { // 得到图片的全路径 Uri uri = data.getData(); crop(uri); } } else if (requestCode == PHOTO_REQUEST_CAREMA) { // 从相机返回的数据 if (hasSdcard()) { crop(Uri.fromFile(tempFile)); } else { Toast.makeText(MainActivity.this, "未找到存储卡，无法存储照片！", Toast.LENGTH_SHORT).show(); } } else if (requestCode == PHOTO_REQUEST_CUT) { // 从剪切图片返回的数据 if (data != null) { Bitmap bitmap = data.getParcelableExtra("data"); /** * 获得图片 */ headPhoto.setImageBitmap(bitmap); //保存到SharedPreferences saveBitmapToSharedPreferences(bitmap); } try { // 将临时文件删除 tempFile.delete(); } catch (Exception e) { e.printStackTrace(); } } super.onActivityResult(requestCode, resultCode, data); } //保存图片到SharedPreferences private void saveBitmapToSharedPreferences(Bitmap bitmap) { // Bitmap bitmap=BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher); //第一步:将Bitmap压缩至字节数组输出流ByteArrayOutputStream ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); bitmap.compress(Bitmap.CompressFormat.PNG, 80, byteArrayOutputStream); //第二步:利用Base64将字节数组输出流中的数据转换成字符串String byte[] byteArray = byteArrayOutputStream.toByteArray(); String imageString = new String(Base64.encodeToString(byteArray, Base64.DEFAULT)); //第三步:将String保持至SharedPreferences SharedPreferences sharedPreferences = getSharedPreferences("testSP", Context.MODE_PRIVATE); SharedPreferences.Editor editor = sharedPreferences.edit(); editor.putString("image", imageString); editor.commit(); //上传头像 setImgByStr(imageString,""); } /** * 上传头像 此处使用用的OKHttp post请求上传的图片 * @param imgStr * @param imgName */ public void setImgByStr(String imgStr, String imgName) { String url = "http://appserver。。。。。。。"; Map<String, String> params = new HashMap<String, String>(); params.put("id", "参数值");// params.put("data", imgStr); OkHttp.postAsync(url, params, new OkHttp.DataCallBack() { @Override public void requestFailure(Request request, IOException e) { Log.i("上传失败", "失败" + request.toString() + e.toString()); } @Override public void requestSuccess(String result) throws Exception { Log.i("上传成功", result); } }); } //从SharedPreferences获取图片 private void getBitmapFromSharedPreferences(){ SharedPreferences sharedPreferences=getSharedPreferences("testSP", Context.MODE_PRIVATE); //第一步:取出字符串形式的Bitmap String imageString=sharedPreferences.getString("image", ""); //第二步:利用Base64将字符串转换为ByteArrayInputStream byte[] byteArray=Base64.decode(imageString, Base64.DEFAULT); if(byteArray.length==0){ headPhoto.setImageResource(R.mipmap.ic_launcher); }else{ ByteArrayInputStream byteArrayInputStream=new ByteArrayInputStream(byteArray); //第三步:利用ByteArrayInputStream生成Bitmap Bitmap bitmap= BitmapFactory.decodeStream(byteArrayInputStream); headPhoto.setImageBitmap(bitmap); } } }
Okhttp=====================================================================
package com.example.day0522; import android.os.Handler; import android.os.Looper; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.HashMap; import java.util.Map; import java.util.concurrent.TimeUnit; import okhttp3.Call; import okhttp3.Callback; import okhttp3.FormBody; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; import okhttp3.Response; import okhttp3.logging.HttpLoggingInterceptor; /** * Created by 你家大林哥 on 2018/5/22. */ public class OkHttp { //静态实例 private static OkHttp sOkHttpManager; //okhttpclient实例 private OkHttpClient mClient; //因为我们请求数据一般都是子线程中请求，在这里我们使用了handler private Handler mHandler; //构造方法 private OkHttp() { //可以通过实现 Logger 接口更改日志保存位置 HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor(); loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY); mClient = new OkHttpClient(); //在这里直接设置连接超时.读取超时，写入超时 OkHttpClient.Builder builder = mClient.newBuilder(); builder.connectTimeout(10, TimeUnit.SECONDS); builder.readTimeout(10, TimeUnit.SECONDS); builder.writeTimeout(10, TimeUnit.SECONDS); builder.addInterceptor(loggingInterceptor); mClient = builder.build(); /** * 如果是用的3.0之前的版本 使用以下直接设置连接超时.读取超时，写入超时 */ //client.setConnectTimeout(10, TimeUnit.SECONDS); //client.setWriteTimeout(10, TimeUnit.SECONDS); //client.setReadTimeout(30, TimeUnit.SECONDS); //初始化handler mHandler = new Handler(Looper.getMainLooper()); } /** * 单例模式 获取OkHttp实例 * * @return */ public static OkHttp getInstance() { if (sOkHttpManager == null) { sOkHttpManager = new OkHttp(); } return sOkHttpManager; } //-------------------------同步的方式请求数据-------------------------- /** * 对外提供的get方法,同步的方式 * @param url 传入的地址 * @return */ public static Response getSync(String url) { //通过获取到的实例来调用内部方法 return sOkHttpManager.inner_getSync(url); } /** * GET方式请求的内部逻辑处理方式，同步的方式 * @param url * @return */ private Response inner_getSync(String url) { Request request = new Request.Builder().url(url).build(); Response response = null; try { //同步请求返回的是response对象 response = mClient.newCall(request).execute(); } catch (IOException e) { e.printStackTrace(); } return response; } /** * 对外提供的同步获取String的方法 * * @param url * @return */ public static String getSyncString(String url) { return sOkHttpManager.inner_getSyncString(url); } /** * 同步方法 */ private String inner_getSyncString(String url) { String result = null; try { /** * 把取得到的结果转为字符串，这里最好用string() */ result = inner_getSync(url).body().string(); } catch (IOException e) { e.printStackTrace(); } return result; } //-------------------------异步的方式请求数据-------------------------- public static void getAsync(String url, DataCallBack callBack) { getInstance().inner_getAsync(url, callBack); } /** * 内部逻辑请求的方法 * @param url * @param callBack * @return */ private void inner_getAsync(String url, final DataCallBack callBack) { final Request request = new Request.Builder().url(url).build(); mClient.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { deliverDataFailure(request, e, callBack); } @Override public void onResponse(Call call, Response response) throws IOException { String result = null; try { result = response.body().string(); } catch (IOException e) { deliverDataFailure(request, e, callBack); } deliverDataSuccess(result, callBack); } }); } /** * 分发失败的时候调用 * @param request * @param e * @param callBack */ private void deliverDataFailure(final Request request, final IOException e, final DataCallBack callBack) { /** * 在这里使用异步处理 */ mHandler.post(new Runnable() { @Override public void run() { if (callBack != null) { callBack.requestFailure(request, e); } } }); } /** * 分发成功的时候调用 * @param result * @param callBack */ private void deliverDataSuccess(final String result, final DataCallBack callBack) { /** * 在这里使用异步线程处理 */ mHandler.post(new Runnable() { @Override public void run() { if (callBack != null) { try { callBack.requestSuccess(result); } catch (Exception e) { e.printStackTrace(); } } } }); } /** * 数据回调接口 */ public interface DataCallBack { void requestFailure(Request request, IOException e); void requestSuccess(String result) throws Exception; } //-------------------------提交表单-------------------------- public static void postAsync(String url, Map<String, String> params, DataCallBack callBack) { getInstance().inner_postAsync(url, params, callBack); } private void inner_postAsync(String url, Map<String, String> params, final DataCallBack callBack) { RequestBody requestBody = null; if (params == null) { params = new HashMap<>(); } /** * 如果是3.0之前版本的，构建表单数据是下面的一句 */ //FormEncodingBuilder builder = new FormEncodingBuilder(); /** * 3.0之后版本 */ FormBody.Builder builder = new FormBody.Builder(); /** * 在这对添加的参数进行遍历，map遍历有四种方式，如果想要了解的可以网上查找 */ for (Map.Entry<String, String> map : params.entrySet()) { String key = map.getKey().toString(); String value = null; /** * 判断值是否是空的 */ if (map.getValue() == null) { value = ""; } else { value = map.getValue(); } /** * 把key和value添加到formbody中 */ builder.add(key, value); } requestBody = builder.build(); //结果返回，添加请求对象，获取数据 /* //下面注释部分代码加上报错但不影响效果，为求效果完美，最好注释 final Request request = new Request.Builder().url(url).post(requestBody).build(); mClient.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { deliverDataFailure(request, e, callBack); } @Override public void onResponse(Call call, Response response) throws IOException { String result = response.body().string(); deliverDataSuccess(result, callBack); } });*/ } //-------------------------文件下载-------------------------- public static void downloadAsync(String url, String desDir, DataCallBack callBack) { getInstance().inner_downloadAsync(url, desDir, callBack); } /** * 下载文件的内部逻辑处理类 * @param url 下载地址 * @param desDir 目标地址 * @param callBack */ private void inner_downloadAsync(final String url, final String desDir, final DataCallBack callBack) { final Request request = new Request.Builder().url(url).build(); mClient.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { deliverDataFailure(request, e, callBack); } @Override public void onResponse(Call call, Response response) throws IOException { //在这里进行文件的下载处理 InputStream inputStream = null; FileOutputStream fileOutputStream = null; try { //文件名和目标地址 File file = new File(desDir, getFileName(url)); //把请求回来的response对象装换为字节流 inputStream = response.body().byteStream(); fileOutputStream = new FileOutputStream(file); int len = 0; byte[] bytes = new byte[2048]; //循环读取数据 while ((len = inputStream.read(bytes)) != -1) { fileOutputStream.write(bytes, 0, len); } //关闭文件输出流 fileOutputStream.flush(); //调用分发数据成功的方法 deliverDataSuccess(file.getAbsolutePath(), callBack); } catch (IOException e) { //如果失败，调用此方法 deliverDataFailure(request, e, callBack); e.printStackTrace(); } finally { if (inputStream != null) { inputStream.close(); } if (fileOutputStream != null) { fileOutputStream.close(); } } } }); } /** * 根据文件url获取文件的路径名字 * @param url * @return */ private String getFileName(String url) { int separatorIndex = url.lastIndexOf("/"); String path = (separatorIndex < 0) ? url : url.substring(separatorIndex + 1, url.length()); return path; } }
权限========================================================================
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.INTERNET"/>
依赖=========================================================================
apply plugin: 'com.android.application' android { compileSdkVersion 26 defaultConfig { applicationId "com.example.day0522" minSdkVersion 15 targetSdkVersion 26 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" //添加部分 javaCompileOptions { annotationProcessorOptions { includeCompileClasspath true } } } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { implementation fileTree(dir: 'libs', include: ['*.jar']) implementation 'com.android.support:appcompat-v7:26.1.0' implementation 'com.android.support.constraint:constraint-layout:1.1.0' testImplementation 'junit:junit:4.12' androidTestImplementation 'com.android.support.test:runner:1.0.2' androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2' //添加依赖 compile 'com.jakewharton:butterknife:7.0.0' compile 'com.squareup.okhttp3:okhttp:3.9.0' compile 'com.squareup.okhttp3:logging-interceptor:3.4.2' }