Question

如何在 android 系统中打开警报对话框的系统级别

Answer 1

解决方法 1:
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@Override
public void onReceive(Context context, Intent intent) {
final WindowManager manager = (WindowManager) context.getApplicationContext().getSystemService(Context.WINDOW_SERVICE);
WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
layoutParams.gravity = Gravity.CENTER;
layoutParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
layoutParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
layoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
layoutParams.alpha = 1.0f;
layoutParams.packageName = context.getPackageName();
layoutParams.buttonBrightness = 1f;
layoutParams.windowAnimations = android.R.style.Animation_Dialog;

final View view = View.inflate(context.getApplicationContext(),R.layout.test_layout, null);
Button yesButton = (Button) view.findViewById(R.id.yesButton);
Button noButton = (Button) view.findViewById(R.id.noButton);
yesButton.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
manager.removeView(view);
}
});
noButton.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
manager.removeView(view);
}
});
manager.addView(view, layoutParams);
}
}