activity_main
<ImageView
android:id=\"@+id/UpImage\"
android:layout_width=\"wrap_content\"
android:layout_height=\"wrap_content\"
android:layout_centerHorizontal=\"true\"
android:layout_centerVertical=\"true\"
android:src=\"@mipmap/ic_launcher\" />
<LinearLayout
android:id=\"@+id/Lin\"
android:layout_width=\"match_parent\"
android:layout_height=\"wrap_content\"
android:layout_alignParentBottom=\"true\"
android:orientation=\"vertical\"
android:visibility=\"gone\">
<Button
android:id=\"@+id/xiangji\"
android:layout_width=\"match_parent\"
android:layout_height=\"wrap_content\"
android:background=\"#fff\"
android:text=\"相机\"
android:textSize=\"20sp\" />
<Button
android:id=\"@+id/xiangce\"
android:layout_width=\"match_parent\"
android:layout_height=\"wrap_content\"
android:background=\"#fff\"
android:text=\"相册\"
android:textSize=\"20dp\" />
<Button
android:id=\"@+id/callback\"
android:layout_width=\"match_parent\"
android:layout_height=\"wrap_content\"
android:layout_marginTop=\"20dp\"
android:background=\"#fff\"
android:text=\"取消\"
android:textSize=\"20sp\" />
</LinearLayout>
地址
public class Constance {
public static final String URL_TOPHAEDS=\"http://www.zhaoapi.cn/\";
}
接口
public interface ApiService {
@Multipart
@POST(\"file/upload\")
Observable<Bean> getBean(@Query(\"uid\") int uid, @Part MultipartBody.Part file);
}
工具类
public class HttpManager {
private static Retrofit retrofit;
public static ApiService getInstance() {
OkHttpClient okHttpClient = new OkHttpClient.Builder()
.connectTimeout(3, TimeUnit.SECONDS)
.readTimeout(3, TimeUnit.SECONDS)
.writeTimeout(3, TimeUnit.SECONDS)
.build();
retrofit = new Retrofit.Builder()
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
. Url(Constance.URL_TOPHAEDS)
.client(okHttpClient)
.build();
ApiService apiService = retrofit.create(ApiService.class);
return apiService;
}
public <T> T create(Class<T> clazz) {
return retrofit.create(clazz);
}
}
MainActivity
public class MainActivity extends AppCompatActivity implements View. Listener {
private final int ONE = 1;
private final int TWO = 2;
private final int THREE = 3;
String path = Environment.getExternalStorageDirectory() + \"/ww.jpg\";
private ImageView UpImage;
private Button xiangji;
private Button xiangce;
private Button callback;
private LinearLayout Lin;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}
//======================获取控件=================
private void initView() {
UpImage = (ImageView) findViewById(R.id.UpImage);
xiangji = (Button) findViewById(R.id.xiangji);
xiangce = (Button) findViewById(R.id.xiangce);
callback = (Button) findViewById(R.id.callback);
callback.set Listener(this);
xiangji.set Listener(this);
xiangce.set Listener(this);
Lin = (LinearLayout) findViewById(R.id.Lin);
UpImage.set Listener(new View. Listener() {
@Override
public void (View v) {
Lin.setVisibility(View.VISIBLE);
}
});
}
========相机=======
private void xiangji() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent,ONE);
}
=======相册============
private void xiangce() {
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType(\"image/*\");
startActivityForResult(intent,TWO);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
=======switch选择==========
switch (requestCode) {
case ONE:
//相机返回数据
if(data != null){
//获取相机图片获取
Bitmap bitmap = data.getParcelableExtra(\"data\");
Uri temp = getBitmap(bitmap, \"temp\");
startImageZoom(temp);
}
break;
case TWO:
if(data != null){
//用户从图库选择图片后会返回所选图片的Uri
Uri uri;
//获取到用户所选图片的Uri
uri = data.getData();
//返回的Uri为content类型的Uri,不能进行复制等操作,需要转换为文件Uri
uri = convertUri(uri);
startImageZoom(uri);
}
break;
case THREE:
Bundle data1 = data.getExtras();
if (data1 != null){
//获取剪裁后的图片
Bitmap data2 = data1.getParcelable(\"data\");
File file = getFile(data2);
//设置本地头像
UpImage.setImageBitmap(data2);
//设置文件设置图片的格式
RequestBody requestBody = RequestBody.create(MediaType.parse(\"image/jpg\"), file);
//设置一个file文件
MultipartBody.Part body = MultipartBody.Part.createFormData(\"file\", file.getName(), requestBody);
HttpManager.getInstance().getBean(72,body)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<Bean>() {
@Override
public void (Throwable e) {
}
@Override
public void onComplete() {
}
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(Bean bean) {
Toast.makeText(MainActivity.this,bean.getMessage(), Toast.LENGTH_SHORT).show();
}
});
}
break;
}
}
===================================
/**
* 将content类型的Uri转化为文件类型的Uri
* @param uri
* @return
*/
private Uri convertUri(Uri uri){
InputStream is;
try {
//Uri ----> InputStream
is = getContentResolver().openInputStream(uri);
//InputStream ----> Bitmap
Bitmap bm = BitmapFactory.decodeStream(is);
//关闭流
is.close();
return getBitmap(bm, \"temp\");
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
==============================================
/**
* 裁剪图片
*/
public void startImageZoom(Uri uri){
//构建隐式Intent来启动程序
Intent intent = new Intent(\"com.android.camera.action.CROP\");
//设置为图片类型
intent.setDataAndType(uri,\"image/*\");
//显示View为可裁剪
intent.putExtra(\"crop\",true);
//裁剪宽高比例
intent.putExtra(\"aspectX\",1);
intent.putExtra(\"aspectY\",1);
//输出图片的宽高
intent.putExtra(\"outputX\",250);
intent.putExtra(\"outputY\",250);
//裁剪之后的数据时通过Intent返回
intent.putExtra(\"return-data\",true);
startActivityForResult(intent,THREE);
}
======================================
//Bitmap转换成file
public File getFile(Bitmap bmp) {
String defaultPath = getApplicationContext().getFilesDir()
.getAbsolutePath() + \"/defaultGoodInfo\";
File file = new File(defaultPath);
if (!file.exists()) {
file.mkdirs();
}
String defaultImgPath = defaultPath + \"/messageImg.jpg\";
file = new File(defaultImgPath);
try {
file.createNewFile();
FileOutputStream fOut = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.PNG, 20, fOut);
fOut.flush();
fOut.close();
} catch (Exception e) {
e.printStackTrace();
}
return file;
}
=============================================
/**
* 将Bitmap文件写入SD卡中,并且返回Uri
*/
private Uri getBitmap(Bitmap bitmap, String temp) {
//新建文件夹用于存放裁剪后的图片
File file = new File(Environment.getExternalStorageDirectory() + \"/\" + temp);
if(!file.exists()){
file.mkdir();
}
//新建文件存储裁剪后的图片
File img = new File(file.getAbsolutePath() + \"/attr.png\");
try {
//打开文件输出流
FileOutputStream fileOutputStream = new FileOutputStream(img);
//将bitmap压缩后写入输出流(参数依次为图片格式、图片质量和输出流)
bitmap.compress(Bitmap.CompressFormat.PNG,85,fileOutputStream);
//刷新输出流
fileOutputStream.flush();
//关闭输出流
fileOutputStream.close();
//返回File类型的Uri
return Uri.fromFile(img);
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
}catch (IOException e) {
e.printStackTrace();
return null;
}
}
==========点击==========
@Override
public void (View v) {
switch (v.getId()) {
case R.id.callback:
Lin.setVisibility(View.GONE);
break;
case R.id.xiangji:
xiangji();
Lin.setVisibility(View.GONE);
break;
case R.id.xiangce:
xiangce();
Lin.setVisibility(View.GONE);
break;
}
}
}
权限
<uses-permission android:name=\"android.permission.INTERNET\" />
<uses-permission android:name=\"android.permission.WRITE_EXTERNAL_STORAGE\" />
<uses-permission android:name=\"android.permission.READ_EXTERNAL_STORAGE\" />
