android调用系统相机拍照
权限
mainactivity.java
public class MainActivity extends AppCompatActivity {private ImageView iv;
private static final int PHOTO_GRAPH = 1;
// 拍照
private static final int PHOTO_SELECT = 2;
private static final int PHOTO_RESOULT = 3;
// 结果
private static final String IMAGE_UNSPECIFIED = "image/*";
private Uri outputFileUri;
Bitmap bitmap;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
iv = (ImageView) findViewById(R.id.iv);
}public void takePhoto(View v){
File file = new File(
Environment.getExternalStorageDirectory().getAbsolutePath(), "temp.jpg");
outputFileUri = Uri.fromFile(file);
Intent intent = new Intent();
intent.setAction("android.media.action.IMAGE_CAPTURE");
intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
startActivityForResult(intent, PHOTO_GRAPH);
// overridePendingTransition(R.animator.in,R.animator.out);
}
//实现从相册选取
public void selectPhoto(View v){
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(intent, PHOTO_SELECT);
}protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if(requestCode==PHOTO_SELECT){
if (data =https://www.it610.com/article/= null){
return;
}else{
//用户从图库选择图片后会返回所选图片的Uri
Uri uri;
//获取到用户所选图片的Uri
uri = data.getData();
///bitmap = Bitmpcompress.compressBitmap(this,uri,iv);
iv.setImageBitmap(bitmap);
// saveBitmap();
}
}
if (requestCode == PHOTO_GRAPH) {
// 设置文件保存路径
if (data != null) {;
Bitmap thumbnail = data.getParcelableExtra("data");
iv.setImageBitmap(thumbnail);
} else {
int width = iv.getWidth();
int height = iv.getHeight();
BitmapFactory.Options faOptions = new BitmapFactory.Options();
faOptions.inJustDecodeBounds = true;
BitmapFactory.decodeFile(outputFileUri.getPath(), faOptions);
int imagewidth = faOptions.outWidth;
int imageheight = faOptions.outHeight;
//确定将图缩小多少！
int scaleFactor = Math.min(imagewidth / width, imageheight / height);
faOptions.inJustDecodeBounds = false;
faOptions.inSampleSize = scaleFactor;
faOptions.inPurgeable = true;
bitmap = BitmapFactory.decodeFile(outputFileUri.getPath(), faOptions);
iv.setImageBitmap(bitmap);
}
}
} else {
Log.i("gsg", "nonononono");
}
super.onActivityResult(requestCode, resultCode, data);
}}
推荐阅读
- android第三方框架（五）ButterKnife
- Android中的AES加密-下
- 带有Hilt的Android上的依赖注入
- SpringBoot调用公共模块的自定义注解失效的解决
- 如何在Mac中的文件选择框中打开系统隐藏文件夹
- thinkphp|thinkphp 3.2 如何调用第三方类库
- 单点登陆
- android|android studio中ndk的使用
- 操作系统|[译]从内部了解现代浏览器(1)
- 游乐园系统，助力游乐园管理