谷歌电子市场-ActionBarDrawerToggle、DrawerLayout、ActionBar

1.侧边栏是一个抽屉效果
2viewpager是一个滑动的
3.顶部的类似viewpagerindecater 升级
4.自动轮播图
5.listview展示
6.点击进去详情数据展示 打开关闭
7.下载退出,两个状态是同步的 ,暂停,点击下载可以继续下载,点击安装,

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始终有问题,即使运行别人写好的代码也不能替换actionBar的图标,更不能实现动态效果….从来没有实现过,不知道问题出在哪?
但是在查资料的时候看到很多
ActionBar自定义布局
不同fragment下actionBar不同状态
L bar
最新的 Toolbar
更改ActionBar的up图标,但是就没有Toggle的动态效果了
主界面的布局见 DrawLayout

public class MainActivity extends AppCompatActivity {

    private ActionBar mActionBar;
    private DrawerLayout mDrawerLayout;    // 抽屉
    private ActionBarDrawerToggle mDrawerToggle;    // 抽屉开关

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerlayout);

        // 初始化actionbar
        initActionBar();


    }

    private void initActionBar() {
        mActionBar = getSupportActionBar();

        // 设置title
        mActionBar.setTitle("GooglePlay");
        // 设置图标
        mActionBar.setIcon(R.mipmap.ic_launcher);
        mActionBar.setDisplayShowHomeEnabled(true);
        // 显示up按钮
        mActionBar.setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);//设置返回键可用
        mActionBar.setHomeAsUpIndicator(R.mipmap.ic_drawer_am);
        // 创建开关
        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                R.mipmap.ic_drawer_am,
                R.string.openDrawerContentDescRes,
                R.string.closeDrawerContentDescRes);
        // 后面两个String其实没什么意思,但是一定要写

        // 设置drawerlayout的监听
        //实现动画
        //ActionBarDrawerToggle implements DrawerLayout.DrawerListener
        mDrawerLayout.setDrawerListener(mDrawerToggle);

    }

    /**
     *使用时覆盖这个方法，图标就会伸缩了
     * When using the ActionBarDrawerToggle, you must call it during
     * onPostCreate() and onConfigurationChanged()...
     */
    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        mDrawerToggle.syncState();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
            case android.R.id.home:
                // 打开或关闭抽屉
                boolean selected = mDrawerToggle.onOptionsItemSelected(item);
                /*
                 * This method should be called by your <code>Activity</code>'s
                 * {@link Activity#onOptionsItemSelected(android.view.MenuItem) onOptionsItemSelected} method.
                 * If it returns true, your <code>onOptionsItemSelected</code> method should return true and
                 * skip further processing.
                 *
                 * @param item the MenuItem instance representing the selected menu item
                 * @return true if the event was handled and further processing should not occur
*/
                if (selected) {
                    return true;//防止影响下面的
                }
                break;

            default:
                break;
        }

        return super.onOptionsItemSelected(item);
    }
}