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Android 调用系统照相机拍照和录像

本文实现android系统照相机的调用来拍照

项目的布局相当简单,只有一个Button:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context=".MainActivity" >    <Button        android:onClick="click"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerHorizontal="true"        android:layout_centerVertical="true"        android:text="调用系统相机拍照" /></RelativeLayout>

首先打开packages\apps\Camera文件夹下面的清单文件,找到下面的代码:

       <activity android:name="com.android.camera.Camera"                android:configChanges="orientation|keyboardHidden"                android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"                android:screenOrientation="landscape"                android:clearTaskOnLaunch="true"                android:taskAffinity="android.task.camera">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.DEFAULT" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>            <intent-filter>                <action android:name="android.media.action.IMAGE_CAPTURE" />                <category android:name="android.intent.category.DEFAULT" />            </intent-filter>            <intent-filter>                <action android:name="android.media.action.STILL_IMAGE_CAMERA" />                <category android:name="android.intent.category.DEFAULT" />            </intent-filter>        </activity>

相关代码如下:

public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void click(View view) {        /*         * <intent-filter> <action         * android:name="android.media.action.IMAGE_CAPTURE" /> <category         * android:name="android.intent.category.DEFAULT" /> </intent-filter>         */        // 激活系统的照相机进行拍照        Intent intent = new Intent();        intent.setAction("android.media.action.IMAGE_CAPTURE");        intent.addCategory("android.intent.category.DEFAULT");                //保存照片到指定的路径        File file = new File("/sdcard/image.jpg");        Uri uri = Uri.fromFile(file);        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);                startActivity(intent);    }}

实现激活录像功能的相关代码也很简单:

public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void click(View view) {        /*         * <intent-filter> <action         * android:name="android.media.action.VIDEO_CAPTURE" /> <category         * android:name="android.intent.category.DEFAULT" /> </intent-filter>         */        // 激活系统的照相机进行录像        Intent intent = new Intent();        intent.setAction("android.media.action.VIDEO_CAPTURE");        intent.addCategory("android.intent.category.DEFAULT");        // 保存录像到指定的路径        File file = new File("/sdcard/video.3pg");        Uri uri = Uri.fromFile(file);        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);        startActivityForResult(intent, 0);    }        @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        Toast.makeText(this, "调用照相机完毕", 0).show();        super.onActivityResult(requestCode, resultCode, data);            }}

 

Android 调用系统照相机拍照和录像