当我单击 Android java 中的按钮时，当 MainActivity 在顶视图活动中未处于活动状态时，剪贴板数据返回 null
我阅读了有关 android10 及更高版本的限制，但我的活动不是后台服务。当我单击位于顶视图活动（如 Google 翻译应用程序）中的按钮时，我需要获取剪贴板数据。就我而言，当 MainActivity 不活动时，剪贴板返回 null 。
https://developer.android.com/about/versions/10/privacy/changes#clipboard-data
public class MainActivity extends BridgeActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Initializes the Bridge
this.init(savedInstanceState, new ArrayList<Class<? extends Plugin>>() {{
// Additional plugins you've installed go here
// Ex: add(TotallyAwesomePlugin.class);
}});
startActivity(new Intent(MainActivity.this, FloatingWindow.class));
}
}
public class FloatingWindow extends Activity {
// ... additional code ....
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
floatingButtonDefinedInClass.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
try {
self.getClipboardText();
} catch (IOException e) {
e.printStackTrace();
}
}
});
}
public void getClipboardText() throws IOException {
try {
ClipboardManager myClipboard = (ClipboardManager)getSystemService(CLIPBOARD_SERVICE);
ClipData clipData = myClipboard.getPrimaryClip();
if(clipData != null) {
text = (String) clipData.getItemAt(0).getText();
System.out.println(text); // returns null when mainactivity is not active
}
} catch (Exception e) {
e.printStackTrace();
}
}
// ... additional code ....
}