Android11外部存储权限
参考⾃:
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />
代码的动态申请:
public final class PermissionActivity extends AppCompatActivity {
private static final int REQUEST_CODE = 1024;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
requestPermission();
}
private void requestPermission() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
// 先判断有没有权限
if (Environment.isExternalStorageManager()) {
writeFile();
} else {
Intent intent = new Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION);
intent.setData(Uri.parse("package:" + PackageName()));
startActivityForResult(intent, REQUEST_CODE);
}
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
// 先判断有没有权限
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED &&
ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {                writeFile();
} else {
} else {
writeFile();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
if (requestCode == REQUEST_CODE) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED &&
ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {                writeFile();
} else {
ToastUtils.show("存储权限获取失败");
}
}
}android11适配机型
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
if (requestCode == REQUEST_CODE && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
if (Environment.isExternalStorageManager()) {
if (Environment.isExternalStorageManager()) {                writeFile();
} else {
ToastUtils.show("存储权限获取失败");
}
}
}
/**
* 模拟⽂件写⼊
*/
private void writeFile() {
ToastUtils.show("写⼊⽂件成功");
}
}

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