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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2.6.1 使用toast显示提示信息框

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