android 零碎知识点

requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);super.onCreate(savedInstanceState);//放在这个之前

1：判断是否有SD卡public static boolean isHaveSDCard(){String state = Environment.getExternalStorageState();if(Environment.MEDIA_MOUNTED.equals(state) ||Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)){isHaveSdCard = true;}return false;}

2：读取SD卡某个图片public Drawable setTitleBackgroundFilter(String picName){BitmapDrawable bd = null ;if(WelcomePage.isHaveSdCard){String DrawableSDPath = configUrl.webUiPngPath_sdcard+picName+version+".png"; //configUrl.webUiPngPath_sdcard 是SD路径bd = new BitmapDrawable(DrawableSDPath);if(bd != null){return bd;}else{String DrawableMemoryPath = configUrl.webUiPngPath_memory + picName + version + ".png"; //configUrl.webUiPngPath_memory 内存路径bd = new BitmapDrawable(DrawableMemoryPath);return bd;}}return null;}

3:将读取出来的图片设置为相应控件背景，这里是设置为title layout的背景，也可以是各种图片setContentView(R.layout.froad_main);getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,R.layout.froad_title);linearLayoutTitle = (LinearLayout)findViewById(R.id.froad_title_title);Drawable sld_title = setTitleBackgroundFilter(ResName.titlePng);if(null != sld_title){linearLayoutTitle.setBackgroundDrawable(sld_title);}