步步為營_Android開發課[18]_使用者介面之Dialog(對話方塊)

標籤：對話方塊   使用者介面   執行個體   life   開發   

Focus on technology, enjoy life！—— QQ：804212028
瀏覽連結：http://blog.csdn.net/y18334702058/article/details/44624305

• 主題：使用者介面之Dialog(對話方塊)

Dialog(對話方塊)執行個體：

activity_main.xml原始碼：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    >    <Button         android:id="@+id/btn1"        android:layout_height="wrap_content"        android:layout_width="fill_parent"        android:text="簡易對話方塊"    />    <Button         android:id="@+id/btn2"        android:layout_height="wrap_content"        android:layout_width="fill_parent"        android:text="列表選擇框"    />    <Button         android:id="@+id/btn3"        android:layout_height="wrap_content"        android:layout_width="fill_parent"        android:text="第一種進度條框"    />    <Button         android:id="@+id/btn4"        android:layout_height="wrap_content"        android:layout_width="fill_parent"        android:text="第二種進度條框"    /></LinearLayout>

MainActivity.java原始碼：

import android.app.Activity;import android.app.AlertDialog;import android.app.ProgressDialog;import android.content.DialogInterface;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity implements OnClickListener{    private Button btn1,btn2,btn3,btn4,btn5,btn6,btn7,btn8;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        init();    }    private void init() {        btn1 =(Button)findViewById(R.id.btn1);        btn1.setOnClickListener(this);        btn2 =(Button)findViewById(R.id.btn2);        btn2.setOnClickListener(this);        btn3 =(Button)findViewById(R.id.btn3);        btn3.setOnClickListener(this);        btn4 =(Button)findViewById(R.id.btn4);        btn4.setOnClickListener(this);    }    @Override    public void onClick(View v) {        switch(v.getId()){        case R.id.btn1:            AlertDialog.Builder builder0 = new AlertDialog.Builder(MainActivity.this);            builder0.setIcon(R.drawable.ic_launcher);            builder0.setTitle("對話方塊");            builder0.setMessage("你是準備去打醬油嗎？");            //設定積極按鈕事件            builder0.setPositiveButton("確認", new DialogInterface.OnClickListener() {                public void onClick(DialogInterface arg0, int arg1) {                    Toast.makeText(MainActivity.this, "點擊了--確認",                             Toast.LENGTH_SHORT).show();                }            });            //設定消極按鈕事件            builder0.setNegativeButton("取消", new DialogInterface.OnClickListener() {                public void onClick(DialogInterface arg0, int arg1) {                    Toast.makeText(MainActivity.this, "點擊了--取消",                             Toast.LENGTH_SHORT).show();                }            });            builder0.create().show();            break;        case R.id.btn2:            final String[] mItems = { "item0", "item1", "itme2", "item3", "itme4",                    "item5", "item6" };            AlertDialog.Builder builder1 = new AlertDialog.Builder(MainActivity.this);            builder1.setTitle("列表選擇框");            builder1.setItems(mItems, new DialogInterface.OnClickListener() {                public void onClick(DialogInterface dialog, int which) {                    Toast.makeText(MainActivity.this, mItems[which],                             Toast.LENGTH_SHORT).show();                }            });            builder1.create().show();            break;        case R.id.btn3:            ProgressDialog mProgressDialog = new ProgressDialog(MainActivity.this);            mProgressDialog.setIcon(R.drawable.ic_launcher);            mProgressDialog.setTitle("第一種進度條框");            //設定進度條風格            mProgressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);            //設定進度條最大值            mProgressDialog.setMax(75);            mProgressDialog.setButton("確認",new DialogInterface.OnClickListener() {                public void onClick(DialogInterface arg0, int arg1) {                    Toast.makeText(MainActivity.this, "點擊了--確認",                             Toast.LENGTH_SHORT).show();                }            });            mProgressDialog.setButton("取消",new DialogInterface.OnClickListener() {                public void onClick(DialogInterface arg0, int arg1) {                    Toast.makeText(MainActivity.this, "點擊了--取消",                             Toast.LENGTH_SHORT).show();                }            });            mProgressDialog.show();            break;        case R.id.btn4:            mProgressDialog = new ProgressDialog(this);            mProgressDialog.setTitle("第二種進度條框");            mProgressDialog.setMessage("正在讀取中，請稍候。。。");            mProgressDialog.setIndeterminate(true);            mProgressDialog.setCancelable(true);            mProgressDialog.show();            break;        }    }   }

運行結果：

點擊第一個按鈕：

點擊第二個按鈕：

點擊第三個按鈕：

點擊第四個按鈕：

Focus on technology, enjoy life！—— QQ：804212028
瀏覽連結：http://blog.csdn.net/y18334702058/article/details/44624305

步步為營_Android開發課[18]_使用者介面之Dialog(對話方塊)