Android(安卓)获取系统自带相机的照片

import android.app.Activity;import android.content.Intent;import android.graphics.Bitmap;import android.graphics.Color;import android.os.Bundle;import android.os.Environment;import android.provider.MediaStore;import android.view.Gravity;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.LinearLayout.LayoutParams;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity {private static final int REQUEST_CODE = 1;//非负private ImageView iv;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);LinearLayout mLinearLayout = new LinearLayout(this);mLinearLayout.setBackgroundColor(Color.RED); // 设置背景颜色mLinearLayout.setOrientation(LinearLayout.VERTICAL); // 垂直布局TextView tv = new TextView(this);tv.setText("哈哈，原来可以不用XML啊,点下那个按钮吧，帅哥");Button mButton = new Button(this);mButton.setText("另外一个世界");mButton.setGravity(Gravity.CENTER);    iv = new ImageView(this);mButton.setOnClickListener(new OnClickListener() {public void onClick(View v) {Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);startActivityForResult(intent, REQUEST_CODE);}});LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);mLinearLayout.addView(tv, params);mLinearLayout.addView(mButton,params);mLinearLayout.addView(iv,params);setContentView(mLinearLayout);}/* (non-Javadoc) * @see android.app.Activity#onActivityResult(int, int, android.content.Intent) */@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if(data != null && data.getExtras() != null) {Bitmap bitMap = (Bitmap)data.getExtras().get("data");iv.setImageBitmap(bitMap);Toast.makeText(this, "bmp.height:" + bitMap.getHeight() + ",bmp.width:" + bitMap.getWidth(), Toast.LENGTH_LONG).show();Toast.makeText(this, "requestCode:" + requestCode + ",resultCode" + resultCode, Toast.LENGTH_LONG).show();}super.onActivityResult(requestCode, resultCode, data);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {getMenuInflater().inflate(R.menu.activity_main, menu);return true;}}
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