Android 调用系统的拍相程序进行录像

xml：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"              android:orientation="vertical"              android:layout_width="fill_parent"              android:layout_height="fill_parent"        >    <Button            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:text="前往录像"            android:onClick="click"            /></LinearLayout>

java:

package com.example.usingSystemCamera;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.provider.MediaStore;import android.view.View;import android.widget.Toast;import java.io.File;public class MyActivity extends Activity {    private File file;//相片文件    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);    }    /**     * 界面按钮点击事件，跳转到系统录像机     */    public void click(View view) {        Intent intent = new Intent();        intent.setAction("android.media.action.VIDEO_CAPTURE");        intent.addCategory("android.intent.category.DEFAULT");        file = new File(Environment.getExternalStorageDirectory(), "myVideo.3gp");        Uri uri = Uri.fromFile(file);        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);        startActivityForResult(intent, 0);    }    /**     * 提示     */    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        Toast.makeText(this,"录像成功！",1).show();    }}

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