ikew0ng

    /**
     * 使用{@link AsyncTask.THREAD_POOL_EXECUTOR} 执行AsyncTask 这样可以避免android
     * 4.0以上系统 每次只执行一个 asyncTask
     * 
     * @param task
     * @param params
     */
    public static <Params, Progress, Result> void executeAsyncTask(
            AsyncTask<Params, Progress, Result> task, Params... params) {
        if (VERSION.SDK_INT >= 11) {

ikew0ng

package me.imid.fuubo.utils;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.support.v4.app.FragmentActivity;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

@SuppressLint("NewApi")

ikew0ng

<!-- activity -->
        <activity
            android:name=".ui.WelcomeActivity"
            android:label="@string/app_name"
            android:windowSoftInputMode="adjustResize|stateHidden" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
            </intent-filter>
        </activity>

ikew0ng

  /**
     * Get actionbar height
     */
    public static int getActionBarHeight(Context context) {
        TypedValue typedValue = new TypedValue();
        if (context.getTheme().resolveAttribute(android.R.attr.actionBarSize, typedValue, true)) {
            return typedValue.complexToDimensionPixelSize(typedValue.data, context.getResources()
                    .getDisplayMetrics());
        }
        return 0;

ikew0ng

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;

/**
 * Created by Chaojun Wang on 5/6/14.
 */
public class ViewPagerUtils {
  private ViewPagerUtils() {}

ikew0ng

private void throwIfNotOnMainThread(){
	if (Looper.myLooper() != Looper.getMainLooper()) {
		throw new IllegalStateException("Must be invoked from the main thread.");
	}
}

ikew0ng

    /**
     * Remove all entries from the backStack of this fragmentManager.
     * 
     * @param fragmentManager the fragmentManager to clear.
     */
    private void clearBackStack(FragmentManager fragmentManager) {
        if (fragmentManager.getBackStackEntryCount() > 0) {
            FragmentManager.BackStackEntry entry = fragmentManager.getBackStackEntryAt(0);
            mFragmentManager.popBackStack(entry.getId(), FragmentManager.POP_BACK_STACK_INCLUSIVE);
        }

ikew0ng

public class ListViewUtils {
  public static final int SCROLL_DURATION = 150;

  private ListViewUtils() {}

  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  public static void scrollListView(final ListView listView, final int position) {
    if (CommonUtils.hasHoneycomb()) {
      listView.smoothScrollToPositionFromTop(position, 0);
      listView.postDelayed(new Runnable() {

ikew0ng

btnMenu.setVisibility(View.VISIBLE);
    btnClose.setVisibility(View.VISIBLE);
    btnRefresh.setVisibility(View.VISIBLE);
    btnMenu.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() {
      @Override
      public boolean onPreDraw() {
        btnMenu.getViewTreeObserver().removeOnPreDrawListener(this);
        ViewGroup.MarginLayoutParams params =
            (ViewGroup.MarginLayoutParams) btnClose.getLayoutParams();
        int marginBottom = params.bottomMargin;

ikew0ng

<!-- target activity -->
<activity android:name="...">
	<meta-data 
        	android:name="com.android.systemui.action_assist_icon"
        	android:resource="@drawable/ic_assist"/>
        	
	<intent-filter>
        	<action android:name="android.intent.action.ASSIST"/>
                <category android:name="android.intent.category.DEFAULT"/>
        </intent-filter>