Android 仿360桌面小人

冷不防 2022-03-31 16:16 186阅读 0赞

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);
    		}
    	}
    
    }