A simple BaseActivity

public abstract class BaseActivity extends Activity {
    /***是否显示标题栏*/
    private  boolean isshowtitle = true;
    /***是否显示标题栏*/
    private  boolean isshowstate = true;
    /***封装toast对象**/
    private static Toast toast;
    /***获取TAG的activity名称**/
    protected final String TAG = this.getClass().getSimpleName();
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if(!isshowtitle){
            requestWindowFeature(Window.FEATURE_NO_TITLE);
        }
 
        if(isshowstate){
            getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN ,
                    WindowManager.LayoutParams. FLAG_FULLSCREEN);
        }
        //设置布局
        setContentView(intiLayout());
        //初始化控件
        initView();
        //设置数据
        initData();
    }
 
    /**
     * 设置布局
     *
     * @return
     */
    public abstract int intiLayout();
 
    /**
     * 初始化布局
     */
    public abstract void initView();
 
    /**
     * 设置数据
     */
    public abstract void initData();
 
    /**
     * 是否设置标题栏
     *
     * @return
     */
    public void setTitle(boolean ishow) {
         isshowtitle=ishow;
    }
 
    /**
     * 设置是否显示状态栏
     * @param ishow
     */
    public void setState(boolean ishow) {
        isshowstate=ishow;
    }
 
    /**
     * 显示长toast
     * @param msg
     */
    public void toastLong(String msg){
        if (null == toast) {
            toast = new Toast(this);
            toast.setDuration(Toast.LENGTH_LONG);
            toast.setText(msg);
            toast.show();
        } else {
            toast.setText(msg);
            toast.show();
        }
    }
 
    /**
     * 显示短toast
     * @param msg
     */
    public void toastShort(String msg){
        if (null == toast) {
            toast = new Toast(this);
            toast.setDuration(Toast.LENGTH_SHORT);
            toast.setText(msg);
            toast.show();
        } else {
            toast.setText(msg);
            toast.show();
        }
    }
 
}