Android之AlerttDialog【JAVA】

最新推荐文章于 2024-08-25 19:52:12 发布

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本文介绍了一个Android应用中各种UI组件的使用方法，包括按钮、编辑框、复选框、单选按钮等，并展示了如何通过这些组件实现简单的用户交互。此外，还详细解释了如何创建和使用不同类型的对话框，如提示对话框、进度对话框、日期选择对话框等。

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1.MainActivity.java

package com.example.alertdialog;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		findViewById(R.id.button1).setOnClickListener(this);
		findViewById(R.id.button2).setOnClickListener(this);
		findViewById(R.id.button3).setOnClickListener(this);
		findViewById(R.id.button4).setOnClickListener(this);
	}

	@Override
	public void onClick(View v) {
		switch(v.getId()){
		case R.id.button1:startActivity(new Intent(MainActivity.this,SimpleComponentActivity.class));
			break;
		case R.id.button2:
			startActivity(new Intent(this,MenuActivity.class));
			break;
		case R.id.button3:
			startActivity(new Intent(this,ProgressActivity.class));
			break;
		case R.id.button4:startActivity(new Intent(MainActivity.this,DialogActivity.class));
		}
	}
}

2.MenuActivity.java

package com.example.alertdialog;

import android.app.Activity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.Button;
import android.widget.Toast;

public class MenuActivity extends Activity {
	private Button btn_test2_show_cm;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_menu);
		btn_test2_show_cm=(Button) findViewById(R.id.btn_test2_show_cm);
		btn_test2_show_cm.setOnCreateContextMenuListener(this);
	}
	
	@Override
	public void onCreateContextMenu(ContextMenu menu, View v,
			ContextMenuInfo menuInfo) {
		// TODO Auto-generated method stub
		super.onCreateContextMenu(menu, v, menuInfo);
		//添加菜单项
		menu.add(0, 1, 0, "添加");
		menu.add(0, 4, 0, "删除");
	}
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// TODO Auto-generated method stub
		
		menu.add(0, 2, 0, "添加");
		menu.add(0, 3, 0, "删除");/*
		MenuInflater menuInflater = getMenuInflater();
		menuInflater.inflate(R.menu.option_menu, menu);*/
		return super.onCreateOptionsMenu(menu);
	}
	
	@Override
	public boolean onContextItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case 1:
			Toast.makeText(this, "添加", 0).show();
			break;
		case 4:
			Toast.makeText(this, "删除", 0).show();
			break;
		default:
			break;
		}
		return super.onContextItemSelected(item);
	}
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// TODO Auto-generated method stub
		switch (item.getItemId()) {
		case 2:
			Toast.makeText(this, "添加", 0).show();
			break;
		case 3:
			Toast.makeText(this, "删除", 0).show();
			break;
		default:
			break;
		}
		return super.onOptionsItemSelected(item);
	}
}

3,ProgressActivity.java

package com.example.alertdialog;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;

public class ProgressActivity extends Activity implements OnSeekBarChangeListener {
	private LinearLayout ll_progress_loading;
	private ProgressBar pb_progress_loading;
	private SeekBar sb_progress_loading;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_progress);
		ll_progress_loading=(LinearLayout) findViewById(R.id.ll_progress_loading);
		pb_progress_loading=(ProgressBar) findViewById(R.id.pb_progress_loading);
		sb_progress_loading=(SeekBar) findViewById(R.id.sb_progress_loading);
		sb_progress_loading.setOnSeekBarChangeListener(this);
	}
	@Override
	public void onProgressChanged(SeekBar seekBar, int progress,
			boolean fromUser) {
		Log.e("tag", "离开滑杆");
		int progress2 = sb_progress_loading.getProgress();
		pb_progress_loading.setProgress(progress2);
		if(progress2==pb_progress_loading.getMax()){
			ll_progress_loading.setVisibility(View.INVISIBLE);
		}else{
			ll_progress_loading.setVisibility(View.VISIBLE);
		}
	}
	@Override
	public void onStartTrackingTouch(SeekBar seekBar) {
		Log.e("tag", "按下滑杆");
	}
	@Override
	public void onStopTrackingTouch(SeekBar seekBar) {
		// TODO Auto-generated method stub
		Log.e("tag", "滑杆移动");
	}
}

4.SimpleComponentActivity.java

package com.example.alertdialog;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

public class SimpleComponentActivity extends Activity {
	private TextView tv;
	private EditText et_simple_number;
	private Button btn_simple_submit;
	private boolean flag;
	
	private CheckBox cb_simple_basket;
	private CheckBox cb_simple_foot;
	private CheckBox cb_simple_pingpang;
	private RadioGroup rg_simple_sex;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_simple_component);
		tv=(TextView) findViewById(R.id.tv_simple_message);
		tv.setText("啦啦啦~~~");
		et_simple_number=(EditText) findViewById(R.id.et_simple_number);
		btn_simple_submit=(Button) findViewById(R.id.btn_simple_submit);
		flag=true;
		btn_simple_submit.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				String number=et_simple_number.getText().toString();
				Toast.makeText(SimpleComponentActivity.this, number, 0).show();
			}
		});
		final ImageView imageView=(ImageView) findViewById(R.id.iv_simple_play);
		imageView.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				if(flag){
					imageView.setBackgroundResource(android.R.drawable.alert_light_frame);
					imageView.setImageResource(android.R.drawable.ic_media_pause);	
				}else{
					imageView.setBackgroundResource(android.R.drawable.alert_dark_frame);
					imageView.setImageResource(android.R.drawable.ic_media_play);	
				}
				flag=!flag;
			}
		});
		rg_simple_sex=(RadioGroup) findViewById(R.id.rg_simple_sex);
		rg_simple_sex.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(RadioGroup group, int checkedId) {
				RadioButton rb=(RadioButton) findViewById(checkedId);
				String sex=rb.getText().toString();
				Toast.makeText(SimpleComponentActivity.this, sex, 0).show();
			}
		});
		cb_simple_basket=(CheckBox) findViewById(R.id.cb_simple_basket);
		cb_simple_foot=(CheckBox) findViewById(R.id.cb_simple_foot);
		cb_simple_pingpang=(CheckBox) findViewById(R.id.cb_simple_pingpang);
		cb_simple_pingpang.setOnCheckedChangeListener(new OnCheckedChangeListener() {
			
			@Override
			public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
				if(isChecked){
					Toast.makeText(SimpleComponentActivity.this, "选中了乒乓", 0).show();
				}else{
					Toast.makeText(SimpleComponentActivity.this, "取消选中乒乓", 0).show();
				}
			}
		});
	}
	public void confirm(View v){
		StringBuffer sb=new StringBuffer();
		if(cb_simple_basket.isChecked()){
			sb.append(cb_simple_basket.getText().toString()).append(" ");
		}
		if(cb_simple_foot.isChecked()){
			sb.append(cb_simple_foot.getText().toString()).append(" ");
		}
		if(cb_simple_pingpang.isChecked()){
			sb.append(cb_simple_pingpang.getText().toString());
		}
		Toast.makeText(this, sb.toString(), 0).show();
	}
}

5.DialogActivity.java

package com.example.alertdialog;

import java.util.Calendar;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.DatePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.app.TimePickerDialog;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.DatePicker;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TimePicker;
import android.widget.Toast;

public class DialogActivity extends Activity {

	private Thread thread;
	private LinearLayout vie;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_dialog);
		vie=(LinearLayout) findViewById(R.id.lin);
	}
	
	public void showAD(View v){
		new AlertDialog.Builder(this).setTitle("删除数据")
		.setMessage("你确定删除数据嘛？？")
		.setPositiveButton("删除", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(DialogActivity.this, "删除数据", 0).show();
				
			}
		}).setNegativeButton("取消", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				Toast.makeText(DialogActivity.this, "取消删除数据", 0).show();
			}
		}).show();
	}
	
	public void showLD(View v){
		final String[] items={"红","蓝","绿","灰"};
		new AlertDialog.Builder(this).setTitle("指定背景颜色").setSingleChoiceItems(items, 2, new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				//Toast.makeText(DialogActivity.this, items[which], 0).show();
						switch(which){
						case 0:vie.setBackgroundColor(0x77ff0000);
							break;
						case 1:vie.setBackgroundColor(0x770000ff);
							break;
						case 2:vie.setBackgroundColor(0x7700ff00);
							break;
						case 3:vie.setBackgroundColor(0x77ababab);
							break;
						default:break;
						}
				dialog.dismiss();
				
			}
		}).show();
	}
	
	public void showPD(View v){
		final ProgressDialog dialog=ProgressDialog.show(this, "数据加载", "数据加载中。。。");
		new Thread(){
			public void run(){
				for(int i=0;i<20;i++){
					try {
						Thread.sleep(200);
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
				dialog.dismiss();
				runOnUiThread(new Runnable() {
					public void run() {
						Toast.makeText(DialogActivity.this, "加载完成了！！！", 0).show();
					}
				});
			}
		}.start();
	}
	
	public void showPD2(View v){
		final ProgressDialog pd=new ProgressDialog(this);
		pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
		pd.show();
		new Thread(new Runnable() {
			
			@Override
			public void run() {
				int count=20;
				pd.setMax(count);
				for(int i=0;i<20;i++){
					try {
						Thread.sleep(200);
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
					pd.setProgress(pd.getProgress()+1);
				}
				pd.dismiss();
			}
		}).start();
	}
	
	public void showCD(View v){
		View view=View.inflate(this, R.layout.dialog_view, null);
		final EditText nameET=(EditText) view.findViewById(R.id.et_dialog_name);
		final EditText pwdET=(EditText) view.findViewById(R.id.et_dialog_pwd);
		
		new AlertDialog.Builder(this)
		.setNegativeButton("取消", null)
		.setPositiveButton("确定", new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				String username=nameET.getText().toString();
				String pwd=pwdET.getText().toString();
				
				Toast.makeText(DialogActivity.this, username+": "+pwd, 0).show();
			}
		})
		.setView(view).show();
	}
	public void showDateAD(View v){
		Calendar calendar=Calendar.getInstance();
		final int year=calendar.get(Calendar.YEAR);
		final int monthOfYear=calendar.get(Calendar.MONTH);
		final int dayOfMonth=calendar.get(Calendar.DAY_OF_MONTH);
		Log.e("TAG",year+"-"+(monthOfYear+1)+"-"+dayOfMonth);
		new DatePickerDialog(this, new OnDateSetListener() {
			
			@Override
			public void onDateSet(DatePicker view, int year, int monthOfYear,
					int dayOfMonth) {
				Log.e("TAG",year+"--"+monthOfYear+"--"+dayOfMonth);
			}
		}, year, monthOfYear, dayOfMonth).show();
	}
	
	public void showTimeAD(View v){
		Calendar calendar=Calendar.getInstance();
		int hourOfDay=calendar.get(Calendar.HOUR_OF_DAY);
		int minute=calendar.get(Calendar.MINUTE);
		Log.e("TAG",hourOfDay+":"+minute);
		new TimePickerDialog(this, new OnTimeSetListener() {
			
			@Override
			public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
				// TODO Auto-generated method stub
				Log.e("TAG",hourOfDay+"::"+minute);
			}
		}, hourOfDay, minute, true).show();
	}
}

6.activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="测试常用菜单Component" />

    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="测试菜单Component" />

    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="测试进度条Component" />

    <Button
        android:id="@+id/button4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="测试对话框Component" />

</LinearLayout>

7.activity_dialog.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:id="@+id/lin" >

    <Button
        android:id="@+id/bt1"
        android:onClick="showAD"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示一般Dialog" />

    <Button
        android:id="@+id/bt2"
        android:onClick="showLD"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示单选列表AlertDialog" />

    <Button
        android:id="@+id/bt3"
        android:onClick="showCD"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示自定义AlertDialog" />

    <Button
        android:id="@+id/bt4"
        android:onClick="showPD"
        android:layout_width="match_parent"
        android:layout_marginTop="20dp"
        android:layout_height="wrap_content"
        android:text="显示圆形进度ProgressDialog" />

    <Button
        android:onClick="showPD2"
        android:id="@+id/bt5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示水平进度ProgressDialog" />

    <Button
        android:layout_marginTop="20dp"
        android:id="@+id/bt6"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示DataPickerDialog"
        android:onClick="showDateAD" />

    <Button
        android:id="@+id/bt7"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示TimePickDialog" 
        android:onClick="showTimeAD"/>

</LinearLayout>

8.activity_menu.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >


    <Button
        android:id="@+id/btn_test2_show_cm"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示ContextMenu" />


    <TextView
        android:id="@+id/textView1"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="1.点击menu显示选项菜单\n2,长按按钮显示上下文菜单"
        android:textSize="25sp" />


</LinearLayout>

9.activity_progress.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <LinearLayout
        android:id="@+id/ll_progress_loading"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        android:gravity="center">

        <ProgressBar
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="正在加载中。。。" />

    </LinearLayout>

    <ProgressBar
        android:id="@+id/pb_progress_loading"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:progress="30" />

    <SeekBar
        android:id="@+id/sb_progress_loading"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />
    <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="1.滑动下面的滑杆后，上面的进度条会同步\n2.滑动到最大值时，最上面的进度条会消失" />

</LinearLayout>

10.activity_simple_component.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/tv_simple_message"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#999999"
        android:text="这是TextView的内容"
        android:textColor="#ff0000"
        android:textSize="20sp" />

    <EditText
        android:id="@+id/et_simple_number"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="请输入手机号"
        android:inputType="phone" />

    <Button
        android:id="@+id/btn_simple_submit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="提    交" />

    <ImageView
        android:id="@+id/iv_simple_play"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@android:drawable/alert_dark_frame"
        android:src="@android:drawable/ic_media_play" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="爱好：" />

        <CheckBox
            android:id="@+id/cb_simple_basket"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="篮球" />

        <CheckBox
            android:id="@+id/cb_simple_foot"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="足球" />

        <CheckBox
            android:id="@+id/cb_simple_pingpang"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="乒乓" />

        <Button
            android:id="@+id/button1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:onClick="confirm"
            android:text="确定" />
    </LinearLayout>

<RadioGroup
    android:id="@+id/rg_simple_sex"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <RadioButton
        android:id="@+id/rb_simple_male"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:checked="true"
        android:text="男" />

    <RadioButton
        android:id="@+id/rb_simple_female"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="女"
        android:checked="true" />

    <RadioButton
        android:id="@+id/rb_simple_nofale"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="人妖" />
</RadioGroup>

</LinearLayout>

11.dialog_view.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" 
    >

    <ImageView
        android:id="@+id/imageView2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:scaleType="fitXY"
        android:src="@drawable/ppp" />

    <EditText
        android:id="@+id/et_dialog_name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="用户名"
        android:ems="10" >

        <requestFocus />
    </EditText>

    <EditText
        android:id="@+id/et_dialog_pwd"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="密码"
        android:inputType="textPassword"
        android:ems="10" />

</LinearLayout>