Android拍照6.0以上动态获取权限

## 前言=== 在Android系统6.0以上拍照需要动态获取权限，并且在获取照片处理上也有些不同；

 

直接上代码吧，就不再多说了。。。。。

具体实现

在res下新建xml文件夹，新建file_paths.xml文件

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <paths>
        <external-path
            name="camera_photos"
            path="." />
    </paths>
</resources>
复制代码

AndroidManifest文件中添加provider

 <provider
    android:name="android.support.v4.content.FileProvider"
    android:authorities="com.example.mvptest.provider"
    android:exported="false"
    android:grantUriPermissions="true">
    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/file_paths" />
 </provider>
复制代码

判断权限方法

/**
 * 获取权限
 * @return
 */
private boolean hasPermission() {
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
            || ContextCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
            || ContextCompat.checkSelfPermission(this,Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.CAMERA}, PERMISSIONS_REQUEST_CODE);
        return false;
    }else {
        return true;
    }
}
复制代码

权限回调判断

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode){
        case PERMISSIONS_REQUEST_CODE:
            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                //takePhoto();
                selectImg();
            }
            break;
    }
}
复制代码

调用相机方法

/**
 * 调用相机
 */
private void takePhoto(){

    if (!hasPermission()){
        return;
    }
    Intent intent = new Intent();
    intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
    String path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/img";
    if (new File(path).exists()) {
        try {
            new File(path).createNewFile();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    @SuppressLint("SimpleDateFormat")
    String filename = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    mTmpFile = new File(path, filename + ".jpg");
    mTmpFile.getParentFile().mkdirs();

    Uri imageUri;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        String authority = getPackageName() + ".provider";
        imageUri = FileProvider.getUriForFile(this, authority, mTmpFile);
    } else {
        imageUri = Uri.fromFile(mTmpFile);
    }
    intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
    startActivityForResult(intent, CAMERA_REQUEST_CODE);
}
复制代码

得到照片进行处理

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode){
        case CAMERA_REQUEST_CODE:
            if (resultCode == RESULT_OK){
                Bitmap photo = BitmapFactory.decodeFile(mTmpFile.getAbsolutePath());
                imageView.setImageBitmap(photo);
            }
            break;
    }
}
复制代码

具体方法如上所示，若有什么问题，希望大家及时指正????