动态授权：
if (Build.VERSION.SDK_INT >=23) {
String[] mPermissionList =new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.CALL_PHONE, Manifest.permission.READ_LOGS, Manifest.permission.READ_PHONE_STATE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.SET_DEBUG_APP, Manifest.permission.SYSTEM_ALERT_WINDOW, Manifest.permission.GET_ACCOUNTS, Manifest.permission.WRITE_APN_SETTINGS};
ActivityCompat.requestPermissions(this, mPermissionList,123);
}
public void openCamera(Activity activity) {
//獲取系統版本
int currentapiVersion = android.os.Build.VERSION.SDK_INT;
// 激活相机
Intent intent =new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// 判断存储卡是否可以用，可用进行存储
if (hasSdcard()) {
SimpleDateFormat timeStampFormat =new SimpleDateFormat(
"yyyy_MM_dd_HH_mm_ss");
String filename = timeStampFormat.format(new Date());
tempFile =new File(Environment.getExternalStorageDirectory(),
filename +".jpg");
if (currentapiVersion <24) {
// 从文件中创建uri
imageUri = Uri.fromFile(tempFile);
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
}else {
//兼容android7.0 使用共享文件的形式
ContentValues contentValues =new ContentValues(1);
contentValues.put(MediaStore.Images.Media.DATA,tempFile.getAbsolutePath());
//检查是否有存储权限，以免崩溃
if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
//申请WRITE_EXTERNAL_STORAGE权限
Toast.makeText(this,"请开启存储权限",Toast.LENGTH_SHORT).show();
return;
}
imageUri = activity.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues);
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
}
}
// 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CAREMA
activity.startActivityForResult(intent,1);
}
/*
* 判断sdcard是否被挂载
*/
public static boolean hasSdcard() {
return Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED);
}
拍照成功的回调：
@Override
protected void onActivityResult(int requestCode,int resultCode, Intent data) {
switch (requestCode) {
case 1:
if (resultCode ==RESULT_OK) {
Intent intent =new Intent("com.android.camera.action.CROP");
intent.setDataAndType(imageUri,"image/*");
intent.putExtra("scale",true);
intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
startActivityForResult(intent,2);// 启动裁剪程序
}
break;
case 2:
if (resultCode ==RESULT_OK) {
try {
Bitmap bitmap = BitmapFactory.decodeStream(getContentResolver()
.openInputStream(imageUri));
phto_img.setImageBitmap(bitmap);
}catch (FileNotFoundException e) {
e.printStackTrace();
}
}
break;
}
}
