2.6.1 使用toast显示提示信息框

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:layout_gravity="center"    android:orientation="vertical" >    <Button        android:id="@+id/btn1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="center"        android:text="普通toast" />    <Button        android:id="@+id/btn2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="center_horizontal"         android:text="带image的toast">    </Button></LinearLayout>

package com.moon.hello2;import java.util.ArrayList;import java.util.Calendar;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.zip.Inflater;import android.R.anim;import android.R.bool;import android.R.integer;import android.animation.AnimatorSet.Builder;import android.app.Activity;import android.app.AlertDialog;import android.app.DatePickerDialog;import android.app.DatePickerDialog.OnDateSetListener;import android.app.ProgressDialog;import android.app.TimePickerDialog.OnTimeSetListener;import android.app.Dialog;import android.app.TimePickerDialog;import android.content.DialogInterface;import android.content.res.TypedArray;import android.database.DataSetObserver;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Gravity;import android.view.Menu;import android.view.View;import android.view.ViewGroup;import android.view.View.OnClickListener;import android.view.ViewGroup.LayoutParams;import android.view.animation.AnimationUtils;import android.widget.AbsListView;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.AdapterView.OnItemSelectedListener;import android.widget.ArrayAdapter;import android.widget.AutoCompleteTextView;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.DatePicker;import android.widget.ExpandableListAdapter;import android.widget.ExpandableListView;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.ListView;import android.widget.PopupWindow;import android.widget.ProgressBar;import android.widget.RatingBar;import android.widget.SimpleAdapter;import android.widget.TableLayout;import android.widget.Toast;import android.widget.RatingBar.OnRatingBarChangeListener;import android.widget.SeekBar;import android.widget.DatePicker.OnDateChangedListener;import android.widget.SeekBar.OnSeekBarChangeListener;import android.widget.TabHost;import android.widget.TextView;import android.widget.TimePicker;import android.widget.TimePicker.OnTimeChangedListener;import android.widget.ViewSwitcher.ViewFactory;public class MainActivity extends Activity {    private ProgressDialog progressDialog = null;    private int progress = 0;    private Handler handler = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        this.setContentView(R.layout.activity_main);        findViewById(R.id.btn1).setOnClickListener(new OnClickListener() {                        @Override            public void onClick(View arg0) {                // TODO Auto-generated method stub                MainActivity.this.getNormalToast().show();            }        });        findViewById(R.id.btn2).setOnClickListener(new OnClickListener() {                        @Override            public void onClick(View arg0) {                // TODO Auto-generated method stub                MainActivity.this.getSpecialToast().show();            }        });    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    private Toast getNormalToast() {        return Toast.makeText(this, "这是一个简单的toast", Toast.LENGTH_SHORT);    }        private Toast getSpecialToast(){        Toast toast = Toast.makeText(this, "这是一个带图片的toast", Toast.LENGTH_SHORT);        LinearLayout layout = new LinearLayout(this);        ImageView imageView = new ImageView(this);        imageView.setImageResource(R.drawable.ic_launcher);        View toastView = toast.getView();        layout.addView(imageView);        layout.addView(toastView);        toast.setView(layout);        return toast;    }}

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