android-camera-app

2013-09-28 14:11:38 +03:00
parent 0724d1ae3b
commit fdb6365164
9 changed files with 223 additions and 0 deletions
@@ -0,0 +1,105 @@
+package com.hmkcode.android;
+
+import java.io.File;
+import java.util.List;
+
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Environment;
+import android.provider.MediaStore;
+import android.app.Activity;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.graphics.Bitmap;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+public class MainActivity extends Activity implements OnClickListener {
+
+	Button btnTackPic;
+	TextView tvHasCamera, tvHasCameraApp;
+	ImageView ivThumbnailPhoto;
+	Bitmap bitMap;
+	static int TAKE_PICTURE = 1;
+	
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_main);
+	
+		// Get reference to views
+		tvHasCamera = (TextView) findViewById(R.id.tvHasCamera);
+		tvHasCameraApp = (TextView) findViewById(R.id.tvHasCameraApp);
+		btnTackPic = (Button) findViewById(R.id.btnTakePic);
+		ivThumbnailPhoto = (ImageView) findViewById(R.id.ivThumbnailPhoto);
+
+		// Does your device have a camera?
+		if(hasCamera()){
+			tvHasCamera.setBackgroundColor(0xFF00CC00);
+			tvHasCamera.setText("You have Camera");
+		}
+		
+		// Do you have Camera Apps?
+		if(hasDefualtCameraApp(MediaStore.ACTION_IMAGE_CAPTURE)){
+			tvHasCameraApp.setBackgroundColor(0xFF00CC00);
+			tvHasCameraApp.setText("You have Camera Apps");
+		}
+		
+		// add onclick listener to the button
+		btnTackPic.setOnClickListener(this);
+		
+	}
+	
+	// on button "btnTackPic" is clicked
+	@Override
+	public void onClick(View view) {
+		
+		// create intent with ACTION_IMAGE_CAPTURE action 
+		Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
+		
+		// to save picture remove comment
+		/*File file = new File(Environment.getExternalStorageDirectory(),
+		"my-photo.jpg");
+		Uri photoPath = Uri.fromFile(file);
+		intent.putExtra(MediaStore.EXTRA_OUTPUT, photoPath); */
+		
+		// start camera activity
+	    startActivityForResult(intent, TAKE_PICTURE);
+
+	}
+	
+	// The Android Camera application encodes the photo in the return Intent delivered to onActivityResult() 
+	// as a small Bitmap in the extras, under the key "data"
+	@Override
+	protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
+		
+		if (requestCode == TAKE_PICTURE && resultCode== RESULT_OK && intent != null){
+			// get bundle
+			Bundle extras = intent.getExtras();
+			
+			// get 
+			bitMap = (Bitmap) extras.get("data");
+			ivThumbnailPhoto.setImageBitmap(bitMap);
+			
+		}
+	}
+
+	// method to check you have a Camera
+	private boolean hasCamera(){
+		return getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA);
+	}
+	
+	// method to check you have Camera Apps
+	private boolean hasDefualtCameraApp(String action){
+		final PackageManager packageManager = getPackageManager();
+	    final Intent intent = new Intent(action);
+	    List<ResolveInfo> list = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
+	    
+	    return list.size() > 0;
+
+	}
+}