1、main.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" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/a" /> <EditText android:id="@+id/num_et" android:layout_width="fill_parent" android:layout_height="wrap_content" android:hint="@string/c" /> <Button android:id="@+id/call_bt" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/b" /> </LinearLayout>
2、MainActivity
package com.njupt.phonetest; import android.net.Uri; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class MainActivity extends Activity { private EditText et_num; private Button bt_call; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); et_num = (EditText) findViewById(R.id.num_et); bt_call = (Button) findViewById(R.id.call_bt); bt_call.setOnClickListener(new MyOnClickListener()); } private class MyOnClickListener implements OnClickListener{ @Override public void onClick(View v) { String phoneNum = et_num.getText().toString(); /** * 以下是打电话的核心代码: */ Intent intent = new Intent();//创建意图对象 intent.setAction(Intent.ACTION_CALL);//设置意图的动作(拨打电话) intent.setData(Uri.parse("tel:" + phoneNum));//设置意图的数据(电话号码) startActivity(intent);//使用意图开启一个界面(打电话的界面) } } @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; } }
3、string.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">PhoneTest</string> <string name="action_settings">Settings</string> <string name="hello_world">Hello world!</string> <string name="a">请输入电话号码</string> <string name="b">拨打号码</string> <string name="c">请在这里输入号码</string> </resources>
4、AndroidManifest.xml
在这个配置文件中加上:
<uses-permission android:name="android.permission.CALL_PHONE"/>
---------------------------以上用到的时候点击事件的处理方式的第一种。以下介绍事件处理的第二种、第三种处理方式------------
第二种事件处理方式:
1、MainActivity2
package com.njupt.phonetest; import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class MainActivity2 extends Activity implements OnClickListener{ private EditText et_num; private Button bt_call; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); et_num = (EditText) findViewById(R.id.num_et); bt_call = (Button) findViewById(R.id.call_bt); bt_call.setOnClickListener(this); } public void onClick(View v) { String phoneNum = et_num.getText().toString(); /** * 以下是打电话的核心代码: */ Intent intent = new Intent();// 创建意图对象 intent.setAction(Intent.ACTION_CALL);// 设置意图的动作(拨打电话) intent.setData(Uri.parse("tel:" + phoneNum));// 设置意图的数据(电话号码) startActivity(intent);// 使用意图开启一个界面(打电话的界面) } @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; } }
其他的代码不需要改变
第三种事件处理的方式:
1、MainActivity3
package com.njupt.phonetest; import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class MainActivity3 extends Activity { private EditText et_num; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); et_num = (EditText) findViewById(R.id.num_et); } public void hello(View v) { String phoneNum = et_num.getText().toString(); /** * 以下是打电话的核心代码: */ Intent intent = new Intent();// 创建意图对象 intent.setAction(Intent.ACTION_CALL);// 设置意图的动作(拨打电话) intent.setData(Uri.parse("tel:" + phoneNum));// 设置意图的数据(电话号码) startActivity(intent);// 使用意图开启一个界面(打电话的界面) } @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; } }
2、main.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" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/a" /> <EditText android:id="@+id/num_et" android:layout_width="fill_parent" android:layout_height="wrap_content" android:hint="@string/c" /> <Button android:id="@+id/call_bt" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/b" android:onClick="hello" /> </LinearLayout>
源码下载:http://download.csdn.net/detail/caihongshijie6/7600651
(Android 基础知识review)打电话
时间: 2024-08-04 19:15:58