Android从摄像头或相册中获取照片
16lz
2021-01-24
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); }@Overrideprotected 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; } }}更多相关文章
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