vendor/mediatek/proprietary/packages/apps/Camera2
In fact, it is a simulated system pop-up window, making a custom one. After the user clicks to allow, it will not pop up next time, but the permission is not actually given. After rejecting it, it will pop up next time. The key storage is SharedPreference
process:
host/src/com/mediatek/camera/CameraActivity.java
import android.content.SharedPreferences;
在protectedvoid onCreateTasks(Bundle savedInstanceState) {
join in
if (!isLocationAllow()) {
Intent permissionIntent = new Intent(Intent.ACTION_VIEW);
permissionIntent.setClass(this, CtaPermissionActivity.class);
permissionIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
|Intent.FLAG_ACTIVITY_CLEAR_TOP
|Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
startActivity(permissionIntent);
}The methods and variables used
public boolean isLocationAllow() {
SharedPreferences settings = this.getSharedPreferences(FMRADIO_CONFIRM_PREF_NAME,0);
return settings.getBoolean(CONFIRM_VALUE_KEY, false);
}
private final String FMRADIO_CONFIRM_PREF_NAME ="ConfirmPrefFile";
privatefinal String CONFIRM_VALUE_KEY = "mtk_location_confirmed";
Create an activity file in
host/src/com/mediatek/camera/CtaPermissionActivity.java
packagecom.mediatek.camera;
importandroid.app.Activity;
importandroid.os.Bundle;
importandroid.content.Intent;
importandroid.util.Log;
importandroid.content.Context;
importandroid.app.AlertDialog;
importandroid.app.Dialog;
importandroid.content.DialogInterface;
importandroid.content.SharedPreferences;
importandroid.widget.Toast;
importandroid.view.MotionEvent;
importandroid.graphics.Color;
importandroid.view.Gravity;
importandroid.graphics.drawable.ColorDrawable;
publicclass CtaPermissionActivity extends Activity {
private static final String TAG ="CtaPermissionActivity";
private final StringFMRADIO_CONFIRM_PREF_NAME = "ConfirmPrefFile";
private final String CONFIRM_VALUE_KEY ="mtk_location_confirmed";
@Override
protected void onCreate(BundlesavedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_cat_permission);
buildAndShowConfirmDialog();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
return false;
}
private void buildAndShowConfirmDialog() {
SharedPreferences settings =getSharedPreferences(FMRADIO_CONFIRM_PREF_NAME, 0);
SharedPreferences.Editor editor =settings.edit();
if(!settings.getBoolean(CONFIRM_VALUE_KEY, false)) {
Dialog dialog = newAlertDialog.Builder(this)
.setTitle(R.string.confirm_dialog_title)
.setMessage(R.string.confirm_dialog_msg)
.setPositiveButton(R.string.confirm_dialog_allow_button,
newDialogInterface.OnClickListener() {
public voidonClick(DialogInterface dialog, int whichButton) {
editor.putBoolean(CONFIRM_VALUE_KEY,true);
editor.commit();
finish();
}
})
.setNegativeButton(R.string.confirm_dialog_deny_button,
newDialogInterface.OnClickListener() {
public voidonClick(DialogInterface dialog, int whichButton) {
Toast toast =Toast.makeText(getApplicationContext(), R.string.deny_toast_msg,
Toast.LENGTH_LONG);
toast.show();
editor.putBoolean(CONFIRM_VALUE_KEY, false);
editor.commit();
finish();
}
})
.create();
dialog.setCanceledOnTouchOutside(false);
dialog.setCancelable(false);
dialog.show();
}
}
}
This activity requires registration
host/AndroidManifest.xml
<activity
android:name="com.mediatek.camera.CtaPermissionActivity"
android:theme="@android:style/Theme.Dialog"
android:clearTaskOnLaunch="true"
android:screenOrientation="portrait"
android:label="@string/camera_label"
android:launchMode="singleTask">
<intent-filter>
<actionandroid:name="android.intent.action.MAIN" />
</intent-filter>
</activity>
The creation of the layout file of this activity is actually empty and nothing, and it just calls the dialog box of the system.
host/res/layout/layout_cat_permission.xml
<?xmlversion="1.0" encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</LinearLayout>
The required string is added to the
host/res/values/strings.xml
host/res/values-zh-rCN/strings.xml
<stringname="confirm_dialog_title">Security warning</string>
<stringname="confirm_dialog_msg">Camera is trying to obtain your currentposition.</string>
<stringname="confirm_dialog_allow_button">Allow</string>
<string name="confirm_dialog_deny_button">Deny</string>
<stringname="deny_toast_msg">Camera is denied to obtainlocation.</string>
<stringname="confirm_dialog_title">“安全提醒” </string>
<stringname="confirm_dialog_msg">“相机会尝试取得您的位置资讯以供功能正常运行”</string>
<string name="confirm_dialog_allow_button">“允许”</string>
<stringname="confirm_dialog_deny_button">“拒绝”</string>
<stringname="deny_toast_msg">相机被拒绝用位置资讯</string>
The last step is to set up the manger class of management permissions in the camera, and open the function of asking permissions every time
common/src/com/mediatek/camera/common/permission/PermissionManager.java
Similar to the modification of cameraactivity, it is just for safety, because originally this camera will not give positioning permission. This is just for convenience in the future, if you decide to add permission function, then you need to be here, now no matter whether you allow or deny, there is no function.
There is no need for the following
importandroid.content.SharedPreferences;
in method
publicboolean checkCameraLocationPermissions() {
Join if (!isLocationAllow()) return false;
In method public booleanrequestCameraLocationPermissions() {
add if (!isLocationAllow()) {
return false;
}
Methods and Quantification Required
publicboolean isLocationAllow() {
SharedPreferences settings =mActivity.getSharedPreferences(FMRADIO_CONFIRM_PREF_NAME, 0);
returnsettings.getBoolean(CONFIRM_VALUE_KEY, false);
}
private final StringFMRADIO_CONFIRM_PREF_NAME = "ConfirmPrefFile";
private final String CONFIRM_VALUE_KEY ="mtk_location_confirmed";
key point:
The activity here is copied
@Override
public boolean onTouchEvent(MotionEventevent) {
return false;
}
Just intercept all touch screen events without processing
Storage usage of SharedPreferences
When using the SharedPreferences class to store data, you first need to call the getSharedPreferences (Stringname, int mode) method to get the instance object, open the Preferences, the name is setting, if it exists, open it, otherwise create a new Preferences
SharedPreferencessettings = getSharedPreferences(FMRADIO_CONFIRM_PREF_NAME, 0);
Since the object itself can only obtain data and cannot store and modify data, it is necessary to call the edit() method of SharedPreferences to obtain editable
SharedPreferences.Editor editor = settings.edit();
Then you can pass the value, one key and one value, and finally submit
editor.putBoolean(CONFIRM_VALUE_KEY,true);
editor.commit();
When calling this data with other classes in the application
SharedPreferencessettings = this.getSharedPreferences(FMRADIO_CONFIRM_PREF_NAME, 0);
settings.getBoolean(CONFIRM_VALUE_KEY,false);
In addition, there are two commonly used methods
editor.remove(“name”); //Delete a piece of data
editor.clear(); //Delete all data