首先使用这个
public static final File android_status = new File(Environment.getExternalStorageDirectory() +
File.separator + "WhatsApp/Media/.Statuses");
public static final File android_11_status = new File(Environment.getExternalStorageDirectory() +
File.separator + "Android/media/com.whatsapp/WhatsApp/Media/.Statuses");
现在检查用户设备中的目录。
if (Common.android_status.exists()) {
execute(Common.android_status);
} else if (Common.android_11_status.exists()) {
execute(Common.android_11_status);
}
清单应该是这样的
<uses-permission
android:name="android.permission.WRITE_EXTERNAL_STORAGE"
tools:ignore="ScopedStorage" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission
android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
android:minSdkVersion="30"
tools:ignore="ScopedStorage" />
<uses-permission
android:name="android.permission.READ_EXTERNAL_STORAGE"
android:maxSdkVersion="29" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:requestLegacyExternalStorage="true"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
是的，别忘了以这种方式为 Android 11 请求运行时权限
public class PermissionActivity extends AppCompatActivity {
private static final int REQUEST_PERMISSIONS = 1234;
private static final String[] PERMISSIONS = {
Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE
};
private static final String MANAGE_EXTERNAL_STORAGE_PERMISSION = "android:manage_external_storage";
private final Handler handler = new Handler(Looper.getMainLooper());
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
if (!arePermissionDenied()){
next();
return;
}
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && arePermissionDenied()) {
requestPermissions(PERMISSIONS, REQUEST_PERMISSIONS);
}
}
@Override
protected void onResume() {
super.onResume();
if (!arePermissionDenied()) {
next();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == REQUEST_PERMISSIONS && grantResults.length > 0) {
if (arePermissionDenied()) {
// Clear Data of Application, So that it can request for permissions again
((ActivityManager) Objects.requireNonNull(this.getSystemService(ACTIVITY_SERVICE))).clearApplicationUserData();
recreate();
} else {
next();
}
}
}
private void next() {
handler.postDelayed(() -> {
startActivity(new Intent(PermissionActivity.this, MainActivity.class));
finish();
}, 1000);
}
private boolean arePermissionDenied() {
for (String permissions : PERMISSIONS) {
if (ActivityCompat.checkSelfPermission(getApplicationContext(), permissions) != PackageManager.PERMISSION_GRANTED) {
return true;
}
}
return false;
}