转载请标明出处:http://www.jianshu.com/u/a5ad093cffe8
效果图如下:
实现当前这种类似的效果 (360小球 悬浮桌面差不错类似)。第一次接触到的童鞋就像我一样懵逼(研究过得童鞋,就知道,实现这种悬浮窗体,是需要添加悬浮窗 设置权限的,我会在下篇文章进行公开源码)废话不多说 ,直接上代码。
1.新建工程,添加悬浮窗权限。
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
2.自定义一个FloatMessagerMainWindow
import android.content.Context; import android.graphics.PixelFormat; import android.graphics.Point; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.view.WindowManager; import android.widget.ImageView; import android.widget.Toast; import com.android.view.FloatMessagePopleDialog; /** * Created by liupanpan on 2017/3/16. */ public class FloatMessagerMainWindow { private Context context; private View view; private WindowManager.LayoutParams mParams = null; private WindowManager windowManager = null; private static FloatMessagerMainWindow floatMessagerMainWindow; public FloatMessagerMainWindow(Context context, View view) { this.context = context; this.view = view; showWindow(context); } public static FloatMessagerMainWindow getFloatMessagerMainWindow(Context context, View view) { if (floatMessagerMainWindow == null) { synchronized (FloatMessagerMainWindow.class) { if (floatMessagerMainWindow == null) { floatMessagerMainWindow = new FloatMessagerMainWindow(context, view); } } } return floatMessagerMainWindow; } private void showWindow(final Context context) { // if (!isWindowDismiss) { // Log.e(TAG, "view is already added here"); // return; // } // isWindowDismiss = false; if (windowManager == null) { windowManager = (WindowManager) context.getApplicationContext().getSystemService(Context.WINDOW_SERVICE); } Point size = new Point(); windowManager.getDefaultDisplay().getSize(size); int screenWidth = size.x; int screenHeight = size.y; mParams = new WindowManager.LayoutParams(); mParams.packageName = context.getPackageName(); mParams.width = WindowManager.LayoutParams.WRAP_CONTENT; mParams.height = WindowManager.LayoutParams.WRAP_CONTENT; mParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN; mParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR; // mParams.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE | // WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN; mParams.format = PixelFormat.RGBA_8888; mParams.gravity = Gravity.LEFT | Gravity.TOP; mParams.x = screenWidth - dp2px(context, 450); mParams.y = screenHeight - dp2px(context, 550); ImageView imageView = new ImageView(context); imageView.setImageResource(R.mipmap.icon_tab_item_message_pressed); imageView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(context, "image=========", Toast.LENGTH_SHORT).show(); View view = LayoutInflater.from(context).inflate(R.layout.float_pople_room_layout, null); FloatMessagePopleDialog.getInstance(context, R.style.webviewTheme).setContextView(view); } }); // floatView = new AVCallFloatView(context); // floatView.setParams(mParams); // floatView.setIsShowing(true); windowManager.addView(imageView, mParams); } private int dp2px(Context context, float dp) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dp * scale + 0.1f); } }
- 调用方法:
FloatMessagerMainWindow.getFloatMessagerMainWindow(context, null);
实现到此 ,点击按钮就可以实现 悬浮窗。(此处可能会出现相应的崩溃,崩溃原因是悬浮窗的 悬浮权限开启问题。)
4.我以官方模拟器为例开启悬浮权限(找不到此位置的 在下方留言):
此时再次打开工程,点击按钮,就可以实现悬浮效果。