Android：电话拨号器

PhoneActivity.java

                    publicclassPhoneActivityextendsActivityimplementsOnClickListener{
            /**
            *Button呼出电话按钮
            */
            privateButtonbtn_callon;
            /**
            *EditText号码输入框
            */
            privateEditTextet_phoneNum;
            /**
            *String用户输入电话号码字符串
            */
            privateStringphoneNum;
            
            /**Calledwhentheactivityisfirstcreated.*/
            @Override
            publicvoidonCreate(BundlesavedInstanceState){
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            initView();
            btn_callon.setOnClickListener(this);
            }
            
            /**
            *初始化界面：获取组件
            */
            publicvoidinitView(){
            btn_callon=(Button)findViewById(R.id.btn_id_phone_callon);
            et_phoneNum=(EditText)findViewById(R.id.et_id_phone_phoneNum);
            
            }
            
            publicvoidonClick(Viewv){
            phoneNum=et_phoneNum.getText().toString();
            if(phoneNum!=null&&!"".equals(phoneNum.trim())){//判断手机号是否为空
            Intentintent=newIntent(Intent.ACTION_CALL,Uri.parse("tel:"//把tel前缀传给系统之后，操作系统会自动调用拨号服务来拨打该号码
            +phoneNum));
            startActivity(intent);
            
            }
            }
            }

main.xml

                    <?xmlversion="1.0"encoding="utf-8"?>
            <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:orientation="vertical">
            
            <TextView
            style="@style/wrap_content"
            android:text="@string/tv_text_phone_phonetext"/>
            
            <EditText
            android:id="@+id/et_id_phone_phoneNum"
            style="@style/fill_parent"
            android:inputType="number"
            android:singleLine="true"/>
            
            <Button
            android:id="@+id/btn_id_phone_callon"
            style="@style/wrap_content"
            android:text="@string/btn_text_phone_callon"/>
            
            </LinearLayout>

strings.xml

                    <?xmlversion="1.0"encoding="utf-8"?>
            <resources>
            
            <stringname="tv_text_phone_phonetext">请输入电话号码:</string>
            <stringname="btn_text_phone_callon">呼出电话</string>
            <stringname="app_name">Phone</string>
            
            </resources>

style.xml

                    <?xmlversion="1.0"encoding="utf-8"?>
            <resources>
            
            <stylename="wrap_content">
            <itemname="android:layout_width">wrap_content</item>
            <itemname="android:layout_height">wrap_content</item>
            </style>
            
            <stylename="fill_parent">
            <itemname="android:layout_width">fill_parent</item>
            <itemname="android:layout_height">wrap_content</item>
            </style>
            
            </resources>

AndroidManifest.xml

                    <?xmlversion="1.0"encoding="utf-8"?>
            <manifestxmlns:android="http://schemas.android.com/apk/res/android"
            package="com.fisnail"
            android:versionCode="1"
            android:versionName="1.0">
            
            <uses-sdkandroid:minSdkVersion="8"/>
            <!--拨打电话权限-->
            <uses-permissionandroid:name="android.permission.CALL_PHONE"/>
            
            <application
            android:icon="@drawable/ic_launcher"
            android:label="@string/app_name">
            <activity
            android:name=".PhoneActivity"
            android:label="@string/app_name">
            <intent-filter>
            <actionandroid:name="android.intent.action.MAIN"/>
            
            <categoryandroid:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
            </activity>
            </application>
            
            </manifest>

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