android状态栏一体化

public class StatusBarWrapper {

private static final String STATUS_BAR_HEIGHT_RES_NAME = "status_bar_height";
private View mStatusBarView;

public StatusBarWrapper(Activity activity) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
setupStatusBarView(activity);
}
}

@TargetApi(19)
private void setupStatusBarView(Activity activity) {
Window win = activity.getWindow();
WindowManager.LayoutParams winParams = win.getAttributes();
final int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
winParams.flags |= bits;
win.setAttributes(winParams);

mStatusBarView = new View(activity);
LayoutParams params = new LayoutParams(LayoutParams.MATCH_PARENT, getStatusBarHeight(activity));
params.gravity = Gravity.TOP;
mStatusBarView.setLayoutParams(params);
mStatusBarView.setBackgroundResource(R.color.main);//只能用id
mStatusBarView.setVisibility(View.VISIBLE);
((ViewGroup) activity.findViewById(android.R.id.content)).getChildAt(0).setFitsSystemWindows(true);
((ViewGroup) win.getDecorView()).addView(mStatusBarView);
}

public void setBackgroundResource(int resId) {
if(mStatusBarView != null) {
mStatusBarView.setBackgroundResource(resId);
}
}

public int getStatusBarHeight(Activity activity) {
Resources res = activity.getResources();
int result = 0;
int resourceId = res.getIdentifier(STATUS_BAR_HEIGHT_RES_NAME, "dimen", "android");
if (resourceId > 0) {
result = res.getDimensionPixelSize(resourceId);
}
return result;
}

}

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new StatusBarWrapper(this).setBackgroundResource(R.color.bg_click);

}
}