代码
权限
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
布局
<LinearLayout 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"
android:orientation="vertical"
android:gravity="center_horizontal"
tools:context="com.xtm.takepicdemo.MainActivity" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="takePicOnClick"
android:text="take_pic" />
<ImageView
android:id="@+id/iv_pic"
android:layout_width="200dp"
android:layout_height="200dp"
android:src="@drawable/ic_launcher"
/>
</LinearLayout>
代码
package com.xtm.takepicdemo;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;
public class MainActivity extends Activity {
private ImageView ivPicImageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ivPicImageView = (ImageView) findViewById(R.id.iv_pic);
}
public void takePicOnClick(View view) {
String state = Environment.getExternalStorageState();
if (state.equals(Environment.MEDIA_MOUNTED)) {
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(intent, 0);
} else {
Toast.makeText(this, "sdcard不可用", Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 0) {
Bundle bundle = data.getExtras();
if (bundle != null) {
Bitmap photo = (Bitmap) bundle.get("data");
ivPicImageView.setImageBitmap(photo);
} else {
Toast.makeText(getApplicationContext(), "找不到图片",
Toast.LENGTH_SHORT).show();
}
}
}
}