使用windowManager实现音乐播放器(悬浮框)效果

在使用要获取CompatModeWrapper，首先得在应用程序的AndroidManifest.xml文件中添加权限

需要创建的类有：

     FloatWindowTest(Activity)

需要创建的布局有：

            layout_item.xml

在DrawAble下创建的xml有：

      layout_item.xml的代码如下：      shape_background_dark.xml

FloatWindowTest的代码如下：

package activity.main.qixin.com.xinqingofqian.ui.activity;

import android.app.Activity;
import android.graphics.PixelFormat;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;

import activity.main.qixin.com.xinqingofqian.R;

public class FloatWindowTest extends Activity implements View.OnClickListener {

    /**
     * Called when the activity is first created.
     */
    WindowManager mWindowManager;
    WindowManager.LayoutParams wmParams;
    LinearLayout mFloatLayout;
    private Button start_Btn;
    private TextView music_title;
    private SeekBar music_seekbar;
    private ImageView music_play;
    private ImageView music_play_xiayishou;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.test_window_float);
        //初始化控件
        initView();


    }

    private void createFloatView() {
        //获取LayoutParams对象
        wmParams = new WindowManager.LayoutParams();
        //获取的是LocalWindowManager对象
        mWindowManager = this.getWindowManager();
        //设置window type
        // 在Android7.1.1版本及以上会报错，所以这里要判断一下：

        if (Build.VERSION.SDK_INT > 24) {
            wmParams.type = WindowManager.LayoutParams.TYPE_PHONE;
        }
        //设置图片格式，效果为背景透明
        wmParams.format = PixelFormat.RGBA_8888;
        //设置浮动窗口不可聚焦（实现操作除浮动窗口外的其他可见窗口的操作）
        wmParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
        //调整悬浮窗显示的停靠位置为左侧置顶
        wmParams.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
        // 以屏幕左上角为原点，设置x、y初始值，相对于gravity
        wmParams.x = 0;
        wmParams.y = 0;
        //设置悬浮窗口长宽数据
        wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
        wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
         /*// 设置悬浮窗口长宽数据
        wmParams.width = 200;
        wmParams.height = 80;*/
         
         
         
         

        LayoutInflater inflater = this.getLayoutInflater();
        //获取浮动窗口视图所在布局
        mFloatLayout = (LinearLayout) inflater.inflate(R.layout.layout_item, null);
        //浮动窗口按钮
        music_title = (TextView) mFloatLayout.findViewById(R.id.music_title);
        music_title.setOnClickListener(this);
        music_seekbar = (SeekBar) mFloatLayout.findViewById(R.id.music_seekbar);
        music_seekbar.setOnClickListener(this);
        music_play = (ImageView) mFloatLayout.findViewById(R.id.music_play);
        music_play.setOnClickListener(this);
        music_play_xiayishou = (ImageView) mFloatLayout.findViewById(R.id.music_play_xiayishou);
        music_play_xiayishou.setOnClickListener(this);
        
        
        
        
        //添加mFloatLayout
        mWindowManager.addView(mFloatLayout, wmParams);
    }

    private void initView() {
        start_Btn = (Button) findViewById(R.id.start_id);
        start_Btn.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.start_id:
                if (null == mWindowManager) {
                    createFloatView();
                }
                break;
            case R.id.music_play:
                Toast.makeText(this, "开始播放了", Toast.LENGTH_SHORT).show();
                //在这里使用内部类
                MyTask myTask = new MyTask();
                myTask.execute("");
                break;
            case R.id.music_play_xiayishou:
                Toast.makeText(this, "开始播放下一首", Toast.LENGTH_SHORT).show();
                break;

        }
    }

    @Override
    public void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();
        if (mFloatLayout != null) {
            //移除悬浮窗口
            mWindowManager.removeView(mFloatLayout);
        }
    }

    //创建内部类实现进度条效果，在点击事件里使用
    class MyTask extends AsyncTask {


        @Override
        protected Integer doInBackground(String... params) {

            for (int i = 0; i < 20; i++) {
                music_seekbar.incrementProgressBy(10);
                onCancelled(music_seekbar.getProgress());
                if (music_seekbar.getProgress() >= music_seekbar.getMax()) {
                    return music_seekbar.getProgress();
                }
                try {
                    new Thread().sleep(500);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            return null;
        }

        @Override
        protected void onProgressUpdate(Integer... values) {
            super.onProgressUpdate(values);
            music_seekbar.setProgress(values[0]);

        }

        @Override
        protected void onPostExecute(Integer integer) {
            super.onPostExecute(integer);
            if (integer >= music_seekbar.getMax()) {
                music_seekbar.setVisibility(View.GONE);
                music_seekbar.setVisibility(View.VISIBLE);
            }
        }
    }


}

layout_item.xml的代码如下：

shape_background_dark.xml的代码如下：

作者：景二倩

May everyone be happy every day and everything go well!