1.得到屏幕宽高+在代码里设置应用的宽高
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mRect =new Rect(0,0,this.getWindowManager().getDefaultDisplay().getWidth(),
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this.getWindowManager().getDefaultDisplay().getHeight());
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FrameLayout lfl = (FrameLayout)findViewById(R.id.FrameLayout);
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FrameLayout.LayoutParams lFLpp = (FrameLayout.LayoutParams)lfl.getLayoutParams();
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lFLpp.width = mRect.width();
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lFLpp.height = mRect.height();
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lfl.setLayoutParams(lFLpp);
2.设置无标题，全屏，横屏
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requestWindowFeature(Window.FEATURE_NO_TITLE);
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getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
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WindowManager.LayoutParams.FLAG_FULLSCREEN);
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setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
3.以String形式返回当前时间
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private String getTimeReturnString() {
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Time m_Time = new Time("GMT+8");
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m_Time.setToNow();
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return String.format("%dH%dS%dM",m_Time.hour,m_Time.minute,m_Time.second);
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}
4.SurfaceView设置背景透明
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this.setZOrderOnTop(true);
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mSurfaceHolder.setFormat(PixelFormat.TRANSPARENT);
5.类似1的另一种实现
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mWindow = getWindow();
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WindowManager.LayoutParams lLayoutParams = mWindow.getAttributes();
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lLayoutParams.x = paX;
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lLayoutParams.y = paY;
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lLayoutParams.width = paWidth;
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lLayoutParams.height = paHeight;
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lLayoutParams.dimAmount = 0f;
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mWindow.setAttributes(lLayoutParams);
5.通知栏的坐标变化动画计算方式。看了下其实是加速度的计算方法，不过不知道我自已写的运行效果不理想，没有系统的平滑。
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void incrementAnim() {
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long now = SystemClock.uptimeMillis();
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float t = ((float)(now - mAnimLastTime)) / 1000;
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final float x = mAnimX;
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final float v = mAnimVel;
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final float a = mAnimAccel;
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mAnimX = x + (v*t) + (0.5f*a*t*t);
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mAnimVel = v + (a*t);
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mAnimLastTime = now;
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}
小方法总结
原文：http://blog.csdn.net/puhaibo_skynet/article/details/42642671
