在我的 AndroidManifest.xml 中：
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
但是当我安装了我的 App-APK 时，我必须在我的 Android 操作系统中手动设置权限（设置 > 应用程序 > myApp > 权限 > 存储）。
我怎样才能获得自动设置的权限。或者我的应用程序的用户必须在对话框中确认它？
我使用以下代码在我的应用程序字符串中获取权限
<string name="permissions_title">Permissions</string>
<string name="draw_over_permissions_message">To display Audio Widget app needs the permission to draw over another apps.</string>
<string name="read_ext_permissions_message">To load list of music app needs access to your media files.</string>
<string name="btn_continue">Continue</string>
<string name="btn_cancel">Cancel</string>
<string name="toast_permissions_not_granted">Permissions not granted.</string>
爪哇
@TargetApi(Build.VERSION_CODES.M)
private void checkReadStoragePermission() {
if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, android.Manifest.permission.READ_EXTERNAL_STORAGE)) {
DialogInterface.OnClickListener onClickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_POSITIVE) {
ActivityCompat.requestPermissions(ParentActivity.this, new String[]{android.Manifest.permission.READ_EXTERNAL_STORAGE}, EXT_STORAGE_PERMISSION_REQ_CODE);
} else if (which == DialogInterface.BUTTON_NEGATIVE) {
onPermissionsNotGranted();
}
dialog.dismiss();
finish();
startActivity(getIntent());
}
};
new AlertDialog.Builder(this)
.setTitle(R.string.permissions_title)
.setMessage(R.string.read_ext_permissions_message)
.setPositiveButton(R.string.btn_continue, onClickListener)
.setNegativeButton(R.string.btn_cancel, onClickListener)
.setCancelable(false)
.show();
return;
}
ActivityCompat.requestPermissions(ParentActivity.this, new String[]{android.Manifest.permission.READ_EXTERNAL_STORAGE, android.Manifest.permission.READ_PHONE_STATE}, EXT_STORAGE_PERMISSION_REQ_CODE);
return;
}
}
private void onPermissionsNotGranted() {
Toast.makeText(this, R.string.toast_permissions_not_granted, Toast.LENGTH_SHORT).show();
Log.v("tom", "JERRY");
}
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private void checkwriteStoragePermission() {
if (ContextCompat.checkSelfPermission(this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this, android.Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
DialogInterface.OnClickListener onClickListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (which == DialogInterface.BUTTON_POSITIVE) {
ActivityCompat.requestPermissions(ParentActivity.this, new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE}, WRITE_EXTERNAL_STORAGE);
Log.v("tom", "TOM");
} else if (which == DialogInterface.BUTTON_NEGATIVE) {
onPermissionsNotGranted();
Log.v("tom", "JERRY");
}
dialog.dismiss();
}
};
new AlertDialog.Builder(this)
.setTitle(R.string.permissions_title)
.setMessage(R.string.read_ext_permissions_message)
.setPositiveButton(R.string.btn_continue, onClickListener)
.setNegativeButton(R.string.btn_cancel, onClickListener)
.setCancelable(false)
.show();
return;
}
ActivityCompat.requestPermissions(ParentActivity.this, new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE}, WRITE_EXTERNAL_STORAGE);
return;
}
}
和
private static final int WRITE_EXTERNAL_STORAGE = 4;
private static final int READ_PHONE_STATE = 3;
你可以在任何你想要的地方调用这个方法。
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我来说两句