Android从摄像头或相册中获取照片
2016-06-12 17:45
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Android从摄像头或相册中获取照片
关键代码:
/** * 从相册中获取,返回结果会在onActivityResult()中 */ private void selectPicFromAlbum() { Intent intent = new Intent(); intent.setAction(Intent.ACTION_GET_CONTENT); intent.setType("image/*"); startActivityForResult(intent, RESULT_FROM_ALBUM); } /** * 从摄像头中获取,返回结果会在onActivityResult()中 */ private void selectPicFromCamera() { Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, RESULT_FROM_CAMERA); }
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (null == data) return; switch (requestCode) { case RESULT_FROM_ALBUM: Uri imageUri = data.getData(); try { Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imageUri); imageView.setImageBitmap(bitmap); } catch (IOException e) { e.printStackTrace(); } break; case RESULT_FROM_CAMERA: Bitmap bitmap = (Bitmap) data.getExtras().get("data"); imageView.setImageBitmap(bitmap); break; } }
具体代码:
package com.ashzheng.studydemo.demo7;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import com.ashzheng.studydemo.R;
import java.io.IOException;
public class Demo7Activity extends Activity {
private ImageView imageView;
private TextView textView;
public static final int RESULT_FROM_ALBUM = 1;
public static final int RESULT_FROM_CAMERA = 2;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_demo7);
imageView = (ImageView) findViewById(R.id.demo7_iv);
textView = (TextView) findViewById(R.id.demo7_tv);
findViewById(R.id.demo7_bt1).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
selectPicFromAlbum();
}
});
findViewById(R.id.demo7_bt2).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
selectPicFromCamera();
}
});
}
/**
* 从相册中获取,返回结果会在onActivityResult()中
*/
private void selectPicFromAlbum() {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(intent, RESULT_FROM_ALBUM);
}
/**
* 从摄像头中获取,返回结果会在onActivityResult()中
*/
private void selectPicFromCamera() {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, RESULT_FROM_CAMERA);
}
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (null == data) return; switch (requestCode) { case RESULT_FROM_ALBUM: Uri imageUri = data.getData(); try { Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imageUri); imageView.setImageBitmap(bitmap); } catch (IOException e) { e.printStackTrace(); } break; case RESULT_FROM_CAMERA: Bitmap bitmap = (Bitmap) data.getExtras().get("data"); imageView.setImageBitmap(bitmap); break; } }}
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