打电话

上篇写了用Android发短信的demo，这篇我们来了解下如何用Android拨打电话

直接看代码

修改main.xml

view plain

<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<Button
android:id="@+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/button"
/>
<EditText
android:id="@+id/text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/text"
/>
</LinearLayout>

修改资源文件strings.xml

view plain

<?xmlversion="1.0"encoding="utf-8"?>
<resources>
<stringname="button">拨打电话</string>
<stringname="app_name">actionCall</string>
<stringname="text">13800138000</string>
<stringname="hello">hello</string>
</resources>

添加关键代码

view plain

packagecom.call;
importjava.util.regex.Matcher;
importjava.util.regex.Pattern;
importandroid.app.Activity;
importandroid.content.Intent;
importandroid.net.Uri;
importandroid.os.Bundle;
importandroid.view.View;
importandroid.widget.Button;
importandroid.widget.EditText;
importandroid.widget.Toast;
publicclassActionCallextendsActivity{
/**Calledwhentheactivityisfirstcreated.*/
privateButtonbutton;
privateEditTexttext;
@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
text=(EditText)findViewById(R.id.text);
button=(Button)findViewById(R.id.button);
button.setOnClickListener(newButton.OnClickListener(){
@Override
publicvoidonClick(Viewv){
//TODOAuto-generatedmethodstub
try{
StringinputStr=text.getText().toString();
if(isPhoneNumberValid(inputStr)==true){
IntentmyIntentDial=newIntent(
"Intent.ACTION_CALL",Uri.parse("tel:"+inputStr)
);
startActivity(myIntentDial);
text.setText("");
}else{
text.setText("");
Toast.makeText(ActionCall.this,"电话格式不对",Toast.LENGTH_LONG).show();
}
}catch(Exceptione){
//TODO:handleexception
System.out.println(e.getMessage());
}
}
});
}
publicstaticbooleanisPhoneNumberValid(StringphoneNumber){
booleanisValid=false;
Stringexpression="^//(?(//d{3})//)?[-]?(//d{3})[-]?(//d{5})$";
Stringexpression2="^//(?(//d{3})//)?[-]?(//d{4})[-]?(//d{4})$";
CharSequenceinputStr=phoneNumber;
Patternpattern=Pattern.compile(expression);
Matchermatcher=pattern.matcher(inputStr);
Patternpattern2=Pattern.compile(expression2);
Matchermatcher2=pattern2.matcher(inputStr);
if(matcher.matches()||matcher2.matches()){
isValid=true;
}
returnisValid;
}
}

最后，别忘了在AndroidManifest.xml中添加权限

view plain

<?xmlversion="1.0"encoding="utf-8"?>
<manifestxmlns:android="http://schemas.android.com/apk/res/android"
package="com.call"
android:versionCode="1"
android:versionName="1.0">
<applicationandroid:icon="@drawable/icon"android:label="@string/app_name">
<activityandroid:name=".ActionCall"
android:label="@string/app_name">
<intent-filter>
<actionandroid:name="android.intent.action.MAIN"/>
<categoryandroid:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
<uses-permissionandroid:name="android.permission.CALL_PHONE">
</uses-permission>
</manifest>

这样，整个demo就完成了，以下是运行结果

小结

1、如果想要直接拨打电话

view plain

Intentintent=newIntent(Intent.ACTION_CALL,uri);

如果想弹出拨号窗口，java代码应改为：

view plain

Intentintent=newIntent(Intent.ACTION_DIAL,uri);

最后别忘记添加拨号权限

view plain

<uses-permissionandroid:name="android.permission.CALL_PHONE">

更多相关文章

随机推荐