Android浮动窗口 [英] Android Floating Window
问题描述
我要制作一个红色的叠加窗口.您可以在下面看到我的代码.当我单击按钮时,它不会执行任何操作.问题出在哪儿?我怎样才能解决这个问题.请提出建议 谢谢!
I want to make a red overlay window. You can see my code below. when i click button it does not do anything. Where is the problem? How can i fix this. Please make suggestions Thank you!
public class MainActivity extends AppCompatActivity {
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button=findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View view) {
Intent intent = new Intent(MainActivity.this, OverlayLayer.class);
startService(intent);
}
});
}
}
public class OverlayLayer extends Service {
public IBinder onBind(Intent ıntent) {
return null;
}
private LinearLayout mLayout;
private WindowManager mManager;
@Override
public void onCreate() {
super.onCreate();
mManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
mLayout = new LinearLayout(this);
LinearLayout.LayoutParams mParams=new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
mLayout.setBackgroundColor(Color.rgb(255,255,0));
mLayout.setLayoutParams(mParams);
WindowManager.LayoutParams parameters=new WindowManager.LayoutParams(400,150,WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY,WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,PixelFormat.TRANSLUCENT);
parameters.x=0;
parameters.y=0;
parameters.gravity = Gravity.CENTER;
mManager.addView(mLayout,parameters);
}
}
推荐答案
首先将其设置为静态",因为它位于您的MainActivity.java文件中,从而将其添加到AndroidManifest中:
First add your Service in AndroidManifest by making it "static" because its in you MainActivity.java file :
<service android:name=".MainActivity$OverlayLayer"/>
//make class static
public static class OverlayLayer extends Service {
...
}
或创建一个独立的类(与MainActivity分开),例如OverlayLayer.java,并将其添加到清单文件中,例如:
Or Create a stand-alone (separate from MainActivity) class like OverlayLayer.java and add it in Manifest file like :
<service android:name=".OverlayLayer"/>
之后,使用以下代码在窗口中添加视图:
After that use following code to add view in window :
在窗口上添加视图的标记取决于操作系统,因此以下代码将使其在每个OS上均可工作:
Flag to add view on window depends on OS, So following code will make it work on each OS :
在 OverlayLayer 类中:
@Override
public void onCreate() {
super.onCreate();
mManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
mLayout = new LinearLayout(this);
LinearLayout.LayoutParams mParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
mLayout.setBackgroundColor(Color.rgb(255, 255, 0));
mLayout.setLayoutParams(mParams);
addToWindow(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
}
public void addToWindow(int LAYOUT_FLAG) {
WindowManager.LayoutParams parameters = new WindowManager.LayoutParams(400, 150, LAYOUT_FLAG, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, PixelFormat.TRANSLUCENT);
parameters.x = 0;
parameters.y = 0;
parameters.gravity = Gravity.CENTER;
try {
mManager.addView(mLayout, parameters);
} catch (Exception e) {
if (LAYOUT_FLAG == WindowManager.LayoutParams.TYPE_SYSTEM_ALERT) {
addToWindow(WindowManager.LayoutParams.TYPE_TOAST);
}
if (LAYOUT_FLAG == WindowManager.LayoutParams.TYPE_TOAST) {
addToWindow(WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY);
}
if (LAYOUT_FLAG == WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY) {
addToWindow(WindowManager.LayoutParams.TYPE_PHONE);
}
}
}
这篇关于Android浮动窗口的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!