Android Application级别自定义Toast

/**
 * App级toast
 */
public class AppToast
{
  private Activity activity;
 
  private ViewGroup layout;
  private ViewGroup content;
  private TextView textView;
 
  private Animation startAnimation;
  private Animation centerAnimation;
  private Animation endAnimation;
 
  private DelayTask task;
  private boolean isShow;
 
  private LayoutParams params;
 
  /**
   * APP级别Toast
   */
  public AppToast(Activity activity)
  {
    this.activity = activity;
 
    layout = (ViewGroup) LayoutInflater.from(activity).inflate(R.layout.toast, null);
    content = (ViewGroup) layout.getChildAt(0);
    textView = (TextView) content.getChildAt(0);
    params = new LayoutParams();
    params.height = LayoutParams.WRAP_CONTENT;
    params.width = LayoutParams.MATCH_PARENT;
    params.gravity = Gravity.TOP;
    params.type = LayoutParams.TYPE_APPLICATION;
    params.format = PixelFormat.TRANSLUCENT;
    params.flags = LayoutParams.FLAG_KEEP_SCREEN_ON | LayoutParams.FLAG_NOT_FOCUSABLE |
        LayoutParams.FLAG_NOT_TOUCHABLE;
    activity.getWindowManager().addView(layout, params);
    layout.setVisibility(View.GONE);
 
    // 开始动画
    startAnimation = new AlphaAnimation(0, 1);
    startAnimation.setDuration(500);
 
    // 中间动画
    centerAnimation = new AlphaAnimation(0.92f, 1);
    centerAnimation.setDuration(500);
 
    // 结束动画
    endAnimation = new AlphaAnimation(1, 0);
    endAnimation.setDuration(500);
    endAnimation.setInterpolator(new AccelerateInterpolator());
 
    // 结束动画监听
    endAnimation.setAnimationListener(new Animation.AnimationListener()
    {
      @Override
      public void onAnimationStart(Animation animation)
      {
      }
 
      @Override
      public void onAnimationEnd(Animation animation)
      {
        layout.setVisibility(View.GONE);
      }
 
      @Override
      public void onAnimationRepeat(Animation animation)
      {
      }
    });
  }
 
  /**
   * 显示Toast
   */
  public void show(String s)
  {
    show(s, 1500);
  }
 
  /**
   * 显示Toast
   */
  public void show(String s, int delay)
  {
    textView.setText(s);
    start();
    if (task != null)
    {
      task.stop();
    }
    task = new DelayTask(delay)
    {
      @Override
      public void logic()
      {
        end();
      }
    };
    task.start();
  }
 
  /**
   * 开始
   */
  private void start()
  {
    if (!isShow)
    {
      layout.setVisibility(View.VISIBLE);
      content.startAnimation(startAnimation);
      isShow = true;
    } else
    {
      content.startAnimation(centerAnimation);
    }
  }
 
  /**
   * 结束
   */
  private void end()
  {
    content.startAnimation(endAnimation);
    isShow = false;
  }
}

/**
 * 延时器类
 *
 * @author zls
 *
 * @version 1.0
 *
 * @time 2015-12-27下午7:52:10
 */
public abstract class DelayTask
{
 protected Thread thread;
 private boolean isRun;
 
 /**
 * 延时器
 */
 public DelayTask(final long delay)
 {
 thread = new Thread()
 {
  @Override
  public void run()
  {
  try
  {
   sleep(delay);
   if(isRun)
   {
   mHandler.sendEmptyMessage(0);
   }
  } catch (Exception e)
  {
  }
  }
 };
 }
 
 protected Handler mHandler = new Handler()
 {
 @Override
 public void handleMessage(Message msg)
 {
  logic();
 }
 };
 
 /** 开始执行 */
 public void start()
 {
 isRun = true;
 thread.start();
 }
 
 /** 停止执行 */
 public void stop()
 {
 isRun = false;
 }
 
 /** 执行逻辑 */
 public abstract void logic();
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:orientation="vertical"
  android:paddingTop="5dp"
  android:paddingLeft="15dp"
  android:paddingRight="15dp">
 
  <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/toast_shape"
    android:fitsSystemWindows="true"
    android:orientation="vertical">
 
    <TextView
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_margin="20dp"
      android:gravity="center"
      android:text="默认提示"
      android:textColor="#fff"
      android:textSize="15sp"/>
  </LinearLayout>
 
</LinearLayout>

public class MainActivity extends AppCompatActivity
{
  private AppToast toast;
 
  @Override
  protected void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main_activity);
 
    toast = new AppToast(this);
  }
 
  public void ok(View v)
  {
    toast.show("这是Toast测试！" + Math.random());
  }
}