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Merge "Add an ApiDemo for showing an overlay window."

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This commit is contained in:
Peter Visontay
2017-12-14 14:02:53 +00:00
committed by Android (Google) Code Review
parent 18faccea6b ad360d40be
commit e746637688
3 changed files with 180 additions and 0 deletions
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9
samples/ApiDemos/AndroidManifest.xml
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@@ -41,6 +41,8 @@
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>
<uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES"/>
<!-- Required for drawing overlay windows (TYPE_SYSTEM_ALERT, TYPE_APPLICATION_OVERLAY) -->
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
<!-- For android.media.audiofx.Visualizer -->
<uses-permission android:name="android.permission.RECORD_AUDIO" />
@@ -2530,6 +2532,13 @@
</intent-filter>
</activity>
<activity android:name=".view.OverlayWindowActivity" android:label="Views/Overlay Window">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.SAMPLE_CODE" />
</intent-filter>
</activity>
<activity android:name=".view.RatingBar1" android:label="Views/Rating Bar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />

41
samples/ApiDemos/res/layout/overlay_window.xml Normal file
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@@ -0,0 +1,41 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2017 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Demonstrates displaying overlay windows. -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:padding="4dip"
android:gravity="center_horizontal"
android:layout_width="match_parent" android:layout_height="match_parent">
<TextView
android:layout_width="match_parent" android:layout_height="wrap_content"
android:layout_weight="0"
android:paddingBottom="4dip"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Demonstrates displaying overlay windows (on top of other apps)."/>
<Button android:id="@+id/show_overlay"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="Show Overlay">
</Button>
<Button android:id="@+id/hide_overlay"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="Hide Overlay">
</Button>
</LinearLayout>

130
samples/ApiDemos/src/com/example/android/apis/view/OverlayWindowActivity.java Normal file
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@@ -0,0 +1,130 @@
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.apis.view;
import com.example.android.apis.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.PixelFormat;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.WindowManager;
import android.view.WindowManager.LayoutParams;
import android.widget.Button;
import android.widget.TextView;
/**
* Demonstrates the display of overlay windows, i.e. windows that are drawn on top of other apps.
*/
public class OverlayWindowActivity extends Activity {
private static int MANAGE_OVERLAY_PERMISSION_REQUEST_CODE = 1;
private View mOverlayView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.overlay_window);
Button button = (Button)findViewById(R.id.show_overlay);
button.setOnClickListener(mShowOverlayListener);
button = (Button)findViewById(R.id.hide_overlay);
button.setOnClickListener(mHideOverlayListener);
}
private OnClickListener mShowOverlayListener = new OnClickListener() {
@Override
public void onClick(View view) {
if (Settings.canDrawOverlays(OverlayWindowActivity.this)) {
drawOverlay();
} else {
// Need to ask the user's permission first. We'll redirect them to Settings.
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
Uri.parse("package:" + getPackageName()));
startActivityForResult(intent, MANAGE_OVERLAY_PERMISSION_REQUEST_CODE);
}
}
};
private OnClickListener mHideOverlayListener = new OnClickListener() {
@Override
public void onClick(View view) {
if (mOverlayView != null) {
WindowManager wm = getWindowManager();
wm.removeView(mOverlayView);
mOverlayView = null;
}
}
};
/**
* This is called after the user chooses whether they grant permission to the app to display
* overlays or not.
*/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == MANAGE_OVERLAY_PERMISSION_REQUEST_CODE) {
// Check if the user granted permission to draw overlays.
if (Settings.canDrawOverlays(this)) {
drawOverlay();
}
}
}
private void drawOverlay() {
if (mOverlayView != null) {
// Already shown.
return;
}
TextView textView = new TextView(this);
textView.setText("I'm an overlay");
textView.setBackgroundColor(Color.WHITE);
textView.setTextColor(Color.BLACK);
textView.setPadding(10, 10, 10, 10);
WindowManager wm = getWindowManager();
LayoutParams params = new LayoutParams();
params.type = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
? LayoutParams.TYPE_APPLICATION_OVERLAY
: LayoutParams.TYPE_PHONE;
params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
| WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
params.format = PixelFormat.TRANSPARENT;
params.width = LayoutParams.WRAP_CONTENT;
params.height = LayoutParams.WRAP_CONTENT;
// Snap to the upper right corner of the screen.
params.gravity = Gravity.TOP | Gravity.RIGHT;
// Set position relative to upper right corner.
params.x = 10;
params.y = 10;
wm.addView(textView, params);
mOverlayView = textView;
}
}