/Users/alamps/AndroidStudioProjects/demo16Toast/demo16Toast/src/main/res/layout/activity_main.xml
         
          
          
      
     ================/Users/alamps/AndroidStudioProjects/demo16Toast/demo16Toast/src/main/java/com/example/demo16toast/MainActivity.javapackage com.example.demo16toast;import android.os.Bundle;import android.app.Activity;import android.view.Gravity;import android.view.Menu;import android.view.View;import android.widget.Button;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.Toast;public class MainActivity extends Activity {    private Button shortShow;    private Button longShow;    private Button customShow;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        this.shortShow = (Button)super.findViewById(R.id._shortShow);        this.longShow = (Button)super.findViewById(R.id._longShow);        this.customShow = (Button)super.findViewById(R.id._customShow);        this.shortShow.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Toast.makeText(MainActivity.this,"Short Toast show ",Toast.LENGTH_SHORT).show();            }        });        this.longShow.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Toast.makeText(MainActivity.this,"Long Toast Show ",Toast.LENGTH_LONG).show();            }        });        this.customShow.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {             Toast customToast= Toast.makeText(MainActivity.this,"Custom Toast show ",Toast.LENGTH_LONG);            customToast.setGravity(Gravity.CENTER,60,30);            LinearLayout customToastView =(LinearLayout)customToast.getView();            ImageView customImageView= new ImageView(MainActivity.this);            customImageView.setImageResource(R.drawable.ic_launcher);            customToastView.addView(customImageView,0);//在文字上方填加图片View            customToast.show();            }        });    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    }