Android 仿360桌面小人

首先自定义FloatsWindowView，用于显示动画小人。

import android.annotation.SuppressLint;

import android.content.Context;

import android.content.Intent;

import android.graphics.drawable.AnimationDrawable;

import android.util.AttributeSet;

import android.util.DisplayMetrics;

import android.view.Gravity;

import android.view.MotionEvent;

import android.view.View;

import android.view.ViewTreeObserver.OnPreDrawListener;

import android.view.WindowManager;

import android.widget.Toast;

@SuppressLint("ClickableViewAccessibility")

public class FloatsWindowView extends View {

	private Context mContext = null;

	private WindowManager mWindowMgr = null;

	private WindowManager.LayoutParams mWindowMgrParams = null;

	private AnimationDrawable mAnimationDrawable = null;

	private int iPosX = 0;

	private int iPosY = 0;

	private int iLastPosX = 0;

	private int iLastPosY = 0;

	private boolean bMoved = false;

	public FloatsWindowView(Context context) {

		this(context, null, 0);

	}

	public FloatsWindowView(Context context, AttributeSet attrs) {

		this(context, attrs, 0);

	}

	@SuppressWarnings("deprecation")

	public FloatsWindowView(Context context, AttributeSet attrs, int defStyle) {

		super(context, attrs, defStyle);

		mContext = context;

		mWindowMgr = (WindowManager) getContext().getApplicationContext()

				.getSystemService("window");

		mWindowMgrParams = new WindowManager.LayoutParams();

		initParams();

		mAnimationDrawable = new AnimationDrawable();

		for (int i = 0; i < 4; i++) {

			int id = getResources().getIdentifier("a" + i, "drawable",

					mContext.getPackageName());

			mAnimationDrawable.addFrame(getResources().getDrawable(id), 100);

		}

		mAnimationDrawable.setOneShot(false);

		this.setBackgroundDrawable(mAnimationDrawable);

		OnPreDrawListener listener = new OnPreDrawListener() {

			@Override

			public boolean onPreDraw() {

				mAnimationDrawable.start();

				return true;

			}

		};

		this.getViewTreeObserver().addOnPreDrawListener(listener);

	}

	private void initParams() {

		DisplayMetrics dm = getResources().getDisplayMetrics();

		mWindowMgrParams.x = dm.widthPixels - 136;

		mWindowMgrParams.y = 300;

		mWindowMgrParams.width = 136;

		mWindowMgrParams.height = 136;

	}

	@Override

	public boolean onTouchEvent(MotionEvent event) {

		switch (event.getAction()) {

		case MotionEvent.ACTION_DOWN:

			iPosX = (int) event.getX();

			iPosY = (int) event.getY();

			bMoved = false;

			break;

		case MotionEvent.ACTION_MOVE:

			bMoved = true;

			iLastPosX = (int) event.getX();

			iLastPosY = (int) event.getY();

			updatePostion(iLastPosX - iPosX, iLastPosY - iPosY);

			break;

		case MotionEvent.ACTION_UP:

			if (!bMoved) {

				Intent it = new Intent(mContext, MainActivity.class);

				mContext.startActivity(it);

			}

			break;

		default:

			break;

		}

		if (event.getAction() == MotionEvent.ACTION_MOVE) {

			getParent().requestDisallowInterceptTouchEvent(true);

		}

		if (event.getAction() == MotionEvent.ACTION_UP) {

			if ((iPosX == iLastPosX) && (iPosY == iLastPosY)) {

				singleClick();

				return true;

			}

		}

		return true;

	}

	private void updatePostion(int x, int y) {

		mWindowMgrParams.type = 2003;

		mWindowMgrParams.format = 1;

		mWindowMgrParams.flags = 40;

		mWindowMgrParams.gravity = Gravity.LEFT | Gravity.TOP;

		mWindowMgrParams.x += x;

		mWindowMgrParams.y += y;

		mWindowMgr.updateViewLayout(this, mWindowMgrParams);

	}

	public void singleClick() {

		Toast.makeText(mContext, "点击了阿狸，哇咔咔咔", Toast.LENGTH_SHORT).show();

	}

}

　　

然后在Activity中添加自定义小人，即可，可以处理小人的点击逻辑，滑动逻辑。

import android.os.Bundle;

import android.util.DisplayMetrics;

import android.view.Gravity;

import android.view.WindowManager;

import android.app.Activity;

import android.content.Context;

public class MainActivity extends Activity {

	private static WindowManager mWindowMgr = null;

	private WindowManager.LayoutParams mWindowMgrParams = null;

	private static FloatsWindowView mFloatsWindowView = null;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

	}

	@Override

	protected void onStop() {

		super.onStop();

	}

	@Override

	public void onWindowFocusChanged(boolean hasFocus) {

		getWindowLayout();

	}

	private void initParams() {

		DisplayMetrics dm = getResources().getDisplayMetrics();

		mWindowMgrParams.x = dm.widthPixels - 136;

		mWindowMgrParams.y = 300;

		mWindowMgrParams.width = 136;

		mWindowMgrParams.height = 136;

	}

	private void getWindowLayout() {

		if (mFloatsWindowView == null) {

			mWindowMgr = (WindowManager) getBaseContext().getSystemService(

					Context.WINDOW_SERVICE);

			mWindowMgrParams = new WindowManager.LayoutParams();

			/*

			 * 2003 在指悬浮在所有界面之上 (4.0+系统中，在下拉菜单下面，而在2.3中，在上拉菜单之上)

			 */

			mWindowMgrParams.type = 2003;

			mWindowMgrParams.format = 1;

			/*

			 * 代码实际是wmParams.flags |= FLAG_NOT_FOCUSABLE;

			 * 40的由来是wmParams的默认属性（32）+ FLAG_NOT_FOCUSABLE（8）

			 */

			mWindowMgrParams.flags = 40;

			mWindowMgrParams.gravity = Gravity.LEFT | Gravity.TOP;

			initParams();

			mFloatsWindowView = new FloatsWindowView(this);

			mWindowMgr.addView(mFloatsWindowView, mWindowMgrParams);

		}

	}

}