Android中简单的打电话应用

CallPhone01.java

package com.ststudy.Call;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;/** * Created by aaron on 9/1/15. */public class CallPhone01 extends Activity {    private EditText mEtPhoneNumber = null;    private Button mBtCall = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);//        this.getWindow().setContentView(this.getLayoutInflater().inflate(R.layout.activity_main, null));        findId();        listen();    }    private void findId()    {        mEtPhoneNumber = (EditText) findViewById(R.id.etPhoneNumber);        mBtCall = (Button) findViewById(R.id.btCall);    }    private void listen()    {        mBtCall.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                String _phoneNumber = null;                _phoneNumber = mEtPhoneNumber.getText().toString();                Intent _intent = new Intent();                _intent.setAction(Intent.ACTION_CALL);                _intent.setData(Uri.parse("tel:" + _phoneNumber));//                Toast.makeText(CallPhone01.this,_phoneNumber,Toast.LENGTH_SHORT).show();                startActivity(_intent);            }        });    }}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:orientation="vertical"              android:layout_width="match_parent"              android:layout_height="match_parent">    <EditText            android:id="@+id/etPhoneNumber"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:inputType="phone"            android:hint="请输入号码"/>    <Button            android:id="@+id/btCall"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:text="拨打电话"/></LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"          package="com.ststudy.Call">    <uses-sdk android:minSdkVersion="13"/>    <application            android:icon="@drawable/icon"            android:label="@string/app_name">        <!--打电话的主Acticity-->        <activity android:name=".CallPhone01">            <intent-filter>                <action android:name="android.intent.action.MAIN"/>                <category android:name="android.intent.category.LAUNCHER"/>            </intent-filter>        </activity>    </application>    <!-- 打电话的权限-->    <uses-permission android:name="android.permission.CALL_PHONE"/></manifest>

效果图：