废话不多说了，直接给大家贴代码了，具体代码如下所述：
public class MainActivity extends AppCompatActivity implements View.onClickListener {
private ImageView iv;//要设置的头像
private Button btn_photo;//调用相册按钮
private Button btn_camera;//调用相机按钮
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv=(ImageView) findViewById(R.id.iv);
btn_photo = (Button) findViewById(R.id.btn_photo);
btn_camera = (Button) findViewById(R.id.btn_camera);
btn_photo.setonClickListener(this);
btn_camera.setonClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_photo://打开系统相册
Intent intent=new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent,100);
break;
case R.id.btn_camera://打开系统相机
Intent intent2=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent2,200);
break;
}
}
@RequiresApi(api = Build.VERSION_CODES.KITKAT)
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==100&&resultCode==RESULT_OK&&data!=null){//系统相册
Uri imageData = data.getData();
String path=getPath(imageData);
Bitmap bitmap = BitmapFactory.decodeFile(path);
Bitmap bitmap1 = BitmapUtils.zoom(bitmap, iv.getWidth(), iv.getHeight());
Bitmap bitmap2 = BitmapUtils.circleBitmap(bitmap1);
//加载显示
iv.setImageBitmap(bitmap2);
//bitmap图片上传到服务器......
//bitmap图片保存到本地
saveImage(bitmap2);
}else if(requestCode==200&&resultCode==RESULT_OK&&data!=null){//系统相机
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
BitmapUtils.zoom(bitmap,iv.getWidth(),iv.getHeight());
bitmap=BitmapUtils.circleBitmap(bitmap);
//加载显示
iv.setImageBitmap(bitmap);
//bitmap图片上传到服务器......
//bitmap图片保存到本地
saveImage(bitmap);
}
}
private void saveImage(Bitmap bitmap) {
File filesDir;
if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){//判断sd卡是否挂载
//路径1：storage/sdcard/Android/data/包名/files
filesDir = this.getExternalFilesDir("");
}else{//手机内部存储
//路径：data/data/包名/files
filesDir = this.getFilesDir();
}
FileOutputStream fos = null;
try {
File file = new File(filesDir,"icon.png");
fos = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 100,fos);
} catch (FileNotFoundException e) {
e.printStackTrace();
}finally{
if(fos != null){
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
//如果本地有,就不需要再去联网去请求
private boolean readImage() {
File filesDir;
if(Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)){//判断sd卡是否挂载
//路径1：storage/sdcard/Android/data/包名/files
filesDir = getExternalFilesDir("");
}else{//手机内部存储
//路径：data/data/包名/files
filesDir = getFilesDir();
}
File file = new File(filesDir,"icon.png");
if(file.exists()){
//存储--->内存
Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath());
iv.setImageBitmap(bitmap);
return true;
}
return false;
}
@RequiresApi(api = Build.VERSION_CODES.KITKAT)
private String getPath(Uri uri) {
int sdkVersion = Build.VERSION.SDK_INT;
//高于4.4.2的版本
if (sdkVersion >= 19) {
Log.e("TAG", "uri auth: " + uri.getAuthority());
if (isExternalStoragedocument(uri)) {
String docId = documentsContract.getdocumentId(uri);
String[] split = docId.split(":");
String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
} else if (isDownloadsdocument(uri)) {
final String id = documentsContract.getdocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),
Long.valueOf(id));
return getDataColumn(this, contentUri, null, null);
} else if (isMediadocument(uri)) {
final String docId = documentsContract.getdocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
Uri contentUri = null;
if ("image".equals(type)) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
} else if ("video".equals(type)) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
} else if ("audio".equals(type)) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
}
final String selection = "_id=?";
final String[] selectionArgs = new String[]{split[1]};
return getDataColumn(this, contentUri, selection, selectionArgs);
} else if (isMedia(uri)) {
String[] proj = {MediaStore.Images.Media.DATA};
Cursor actualimagecursor = this.managedQuery(uri, proj, null, null, null);
int actual_image_column_index = actualimagecursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
actualimagecursor.moveToFirst();
return actualimagecursor.getString(actual_image_column_index);
}
} else if ("content".equalsIgnoreCase(uri.getScheme())) {
// Return the remote address
if (isGooglePhotosUri(uri))
return uri.getLastPathSegment();
return getDataColumn(this, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {column};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
if (cursor != null && cursor.moveToFirst()) {
final int index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
private boolean isExternalStoragedocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
public static boolean isDownloadsdocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
public static boolean isMediadocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
public static boolean isMedia(Uri uri) {
return "media".equals(uri.getAuthority());
}
public static boolean isGooglePhotosUri(Uri uri) {
return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}
@Override
protected void onResume() {
super.onResume();
if(readImage()){
return;
}
}
}
//BitmapUtils工具类public class BitmapUtils { public static Bitmap circleBitmap(Bitmap source){ //默认只对宽进行处理 int width=source.getWidth(); Bitmap bitmap=Bitmap.createBitmap(width,width,Bitmap.Config.ARGB_8888); Canvas canvas=new Canvas(bitmap); Paint paint=new Paint(); //设置抗锯齿 paint.setAntiAlias(true); canvas.drawCircle(width/2,width/2,width/2,paint); paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN)); canvas.drawBitmap(source,0,0,paint); return bitmap; } public static Bitmap zoom(Bitmap source,float width,float height){ Matrix matrix=new Matrix(); //图片进行压缩处理 matrix.postScale(width/source.getWidth(),height/source.getHeight()); Bitmap bitmap = Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), matrix, false); return bitmap; }}
以上所述是小编给大家介绍的Android实现调用系统图库与相机设置头像并保存在本地及服务器 ，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！
