package alice.bw.com.day03toolabardrawlayout;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.widget.Toolbar;import android.view.MenuItem;import android.view.View;import android.view.Window;import android.widget.Toast;/** * ToolaBar的使用 */public class ToolBarBaseActivity extends AppCompatActivity { private Toolbar mToolbar; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  supportRequestWindowFeature(Window.FEATURE_NO_TITLE);//如果繼承的是AppCompatActivity 使用supportRequestWindowFeature(Window.FEATURE_NO_TITLE)  //如果繼承的Activity使用requestWindowFeature(Window.FEATURE_NO_TITLE);,必須要在setContentView之前  setContentView(R.layout.activity_tool_bar_base);  mToolbar = (Toolbar) findViewById(R.id.toolaBar);  //設置ToolBar的導航圖標  mToolbar.setNavigationIcon(R.mipmap.ic_launcher);  mToolbar.setNavigationOnClickListener(new View.OnClickListener() {   @Override   public void onClick(View view) {    Toast.makeText(ToolBarBaseActivity.this, "我是導航圖標", Toast.LENGTH_SHORT).show();   }  });  //設置logo  mToolbar.setLogo(R.mipmap.ic_launcher);  mToolbar.setTitle("大標題");  mToolbar.setSubtitle("子標題");  //設置menu  mToolbar.inflateMenu(R.menu.toolbarmenu);  mToolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {   @Override   public boolean onMenuItemClick(MenuItem item) {    switch (item.getItemId()){     case R.id.item_1:      Toast.makeText(ToolBarBaseActivity.this, "標題一", Toast.LENGTH_SHORT).show();      break;     case R.id.item_2:      Toast.makeText(ToolBarBaseActivity.this, "標題二", Toast.LENGTH_SHORT).show();      break;     case R.id.item_3:      Toast.makeText(ToolBarBaseActivity.this, "標題三", Toast.LENGTH_SHORT).show();      break;    }    return true;   }  }); }}