Android系统调用

main.xml如下:

[html]
LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:gravity="center_horizontal"
    >
   <Button
       android:id="@+id/callTelephoneButton"
       android:layout_width="150dip"
       android:layout_height="40dip"
       android:gravity="center"
       android:text="@string/callTelephone"
       android:layout_marginTop="50dip"
       android:textSize="20sp"
       />
    <Button
       android:id="@+id/browsephotosButton"
       android:layout_width="150dip"
       android:layout_height="40dip"
       android:gravity="center"
       android:text="@string/browsephotos"
       android:layout_marginTop="50dip"
       android:textSize="20sp"
       />
     <Button
       android:id="@+id/openBrowserButton"
       android:layout_width="150dip"
       android:layout_height="40dip"
       android:gravity="center"
       android:text="@string/openBrowser"
       android:layout_marginTop="50dip"
       android:textSize="20sp"
       />
      <Button
       android:id="@+id/openCameraButton"
       android:layout_width="150dip"
       android:layout_height="40dip"
       android:gravity="center"
       android:text="@string/openCamera"
       android:layout_marginTop="50dip"
       android:textSize="20sp"
       />

</LinearLayout>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical"
    android:gravity="center_horizontal"
    >
   <Button
       android:id="@+id/callTelephoneButton"
       android:layout_width="150dip"
       android:layout_height="40dip"
       android:gravity="center"
       android:text="@string/callTelephone"
       android:layout_marginTop="50dip"
       android:textSize="20sp"
       />
    <Button
       android:id="@+id/browsephotosButton"
       android:layout_width="150dip"
       android:layout_height="40dip"
       android:gravity="center"
       android:text="@string/browsephotos"
       android:layout_marginTop="50dip"
       android:textSize="20sp"
       />
     <Button
       android:id="@+id/openBrowserButton"
       android:layout_width="150dip"
       android:layout_height="40dip"
       android:gravity="center"
       android:text="@string/openBrowser"
       android:layout_marginTop="50dip"
       android:textSize="20sp"
       />
      <Button
       android:id="@+id/openCameraButton"
       android:layout_width="150dip"
       android:layout_height="40dip"
       android:gravity="center"
       android:text="@string/openCamera"
       android:layout_marginTop="50dip"
       android:textSize="20sp"
       />

</LinearLayout>MainActivity如下:

[java]
package cn.com.bravesoft.testintent;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.app.Activity;
import android.content.Intent;
/**
*
*官方资料:
*1 权限设置
* http://developer.android.com/reference/android/Manifest.permission.html
*2 系统Intent
* http://developer.android.com/reference/android/content/Intent.html#ACTION_CALL
*/
public class MainActivity extends Activity {
    private Button mTelephoneButton;
    private Button mPhotosButton;
    private Button mBrowserButton;
    private Button mCameraButton;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);&n

补充：移动开发 , Android ,