android设置头像

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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:background="#F3F1DA"  
    android:orientation="vertical" >  
  
    <!-- title -->  
  
    <LinearLayout  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        android:layout_gravity="center"  
        android:background="@drawable/corner_stroke"  
        android:gravity="center"  
        android:orientation="horizontal" >  
  
        <TextView  
            android:layout_width="fill_parent"  
            android:layout_height="wrap_content"  
            android:gravity="center"  
            android:text="我的靓照"  
            
            android:textColor="@android:color/black" />  
    </LinearLayout>  
  
    <!-- image switch -->  
  
    <RelativeLayout  
        android:id="@+id/switch_face_rl"  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        android:layout_gravity="center"  
        android:layout_margin="20dip"  
        android:background="@drawable/corner_stroke_black"  
        android:clickable="true"   
        android:padding="5dip" >  
  
        <ImageView  
            android:id="@+id/face"  
            android:layout_width="60dip"  
            android:layout_height="60dip"  
            android:layout_alignParentLeft="true"  
            android:layout_marginLeft="10dip"  
            android:background="@drawable/corner_stroke"
            android:src="@drawable/family_ice_say_relatives" />  
  
        <TextView  
            android:layout_width="wrap_content"  
            android:layout_height="60dp"  
            android:layout_marginLeft="5dip"  
            android:layout_marginTop="5dip"  
            android:layout_toRightOf="@id/face"  
            android:layout_gravity="center"  
            android:text="点击设置头像"  
            android:textColor="@android:color/black" />   
    </RelativeLayout>  
  
</LinearLayout>

package com.mm.mmcalendar.activity;

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.app.FragmentActivity;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.Toast;

import com.mm.mmcalendar.R;
import com.mm.mmcalendar.dao.SharedPreferencesUtils;
import com.mm.mmcalendar.utils.Tools;



public class MyFaceActivity extends FragmentActivity {

	 /* 组件 */  
    private RelativeLayout switchAvatar;  
    private ImageView faceImage;  
  
    private String[] items = new String[] { "选择本地图片", "拍照" };  
    /* 头像名称 */  
    private static final String IMAGE_FILE_NAME = "faceImage.jpg";  
  
    /* 请求码 */  
    private static final int IMAGE_REQUEST_CODE = 0;  
    private static final int CAMERA_REQUEST_CODE = 1;  
    private static final int RESULT_REQUEST_CODE = 2;  
  
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        //requestWindowFeature(Window.FEATURE_NO_TITLE); // 去掉标题  
        setContentView(R.layout.myface);  
        switchAvatar = (RelativeLayout) findViewById(R.id.switch_face_rl);  
        faceImage = (ImageView) findViewById(R.id.face);  
        String photo=SharedPreferencesUtils.getStringValue(this, SharedPreferencesUtils.PHOTO_PATH, null);
        if(photo!=null){
        	byte[] content = Tools.getImageContentInSize(photo, 310, 310);
        	Bitmap b=Tools.Bytes2Bimap(content);
        	if(b!=null)
        		faceImage.setImageBitmap(b);
        }
        // 设置事件监听  
        switchAvatar.setOnClickListener(listener);  
    }  
  
    private View.OnClickListener listener = new View.OnClickListener() {  
  
        @Override  
        public void onClick(View v) {  
            showDialog();  
        }  
    };  
  
    /** 
     * 显示选择对话框 
     */  
    private void showDialog() {  
  
        new AlertDialog.Builder(this)  
                .setTitle("设置头像")  
                .setItems(items, new DialogInterface.OnClickListener() {  
  
                    @Override  
                    public void onClick(DialogInterface dialog, int which) {  
                        switch (which) {  
                        case 0:  
                            Intent intentFromGallery = new Intent();  
                            intentFromGallery.setType("image/*"); // 设置文件类型  
                            intentFromGallery  
                                    .setAction(Intent.ACTION_GET_CONTENT);  
                            startActivityForResult(intentFromGallery,  
                                    IMAGE_REQUEST_CODE);  
                            break;  
                        case 1:  
                            Intent intentFromCapture = new Intent(  
                                    MediaStore.ACTION_IMAGE_CAPTURE);  
                            // 判断存储卡是否可以用，可用进行存储  
                            if (Tools.hasSdcard()) {  
                               File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);  
                               File file = new File(path,IMAGE_FILE_NAME);  
                                intentFromCapture.putExtra(  
                                        MediaStore.EXTRA_OUTPUT,  
                                        Uri.fromFile(file));  
                            }  
  
                            startActivityForResult(intentFromCapture,CAMERA_REQUEST_CODE);  
                            break;  
                        }  
                    }  
                })  
                .setNegativeButton("取消", new DialogInterface.OnClickListener() {  
  
                    @Override  
                    public void onClick(DialogInterface dialog, int which) {  
                        dialog.dismiss();  
                    }  
                }).show();  
  
    }  
  
    @Override  
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
        //结果码不等于取消时候  
        if (resultCode != RESULT_CANCELED) {  
  
            switch (requestCode) {  
            case IMAGE_REQUEST_CODE:  
                startPhotoZoom(data.getData());  
                break;  
            case CAMERA_REQUEST_CODE:  
                if (Tools.hasSdcard()) {  
                   File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);  
                   File tempFile = new File(path,IMAGE_FILE_NAME);  
                    startPhotoZoom(Uri.fromFile(tempFile));  
                } else {  
                    Toast.makeText(MyFaceActivity.this, "未找到存储卡，无法存储照片！",Toast.LENGTH_LONG).show();  
                }  
                break;  
            case RESULT_REQUEST_CODE: //图片缩放完成后  
                if (data != null) {  
                    getImageToView(data);  
                }  
                break;  
            }  
        }  
        super.onActivityResult(requestCode, resultCode, data);  
    }  
  
    /**  
     * 裁剪图片方法实现  
     *   
     * @param uri  
     */  
    public void startPhotoZoom(Uri uri) {  
  
        Intent intent = new Intent("com.android.camera.action.CROP");  
        intent.setDataAndType(uri, "image/*");  
        // 设置裁剪  
        intent.putExtra("crop", "true");  
        // aspectX aspectY 是宽高的比例  
        intent.putExtra("aspectX", 1);  
        intent.putExtra("aspectY", 1);  
        // outputX outputY 是裁剪图片宽高  
        intent.putExtra("outputX", 340);  
        intent.putExtra("outputY", 340);  
        intent.putExtra("return-data", true);  
        startActivityForResult(intent, RESULT_REQUEST_CODE);  
    }  
  
    /**  
     * 保存裁剪之后的图片数据  
     *   
     * @param picdata  
     */  
    private void getImageToView(Intent data) {  
        Bundle extras = data.getExtras();  
        if (extras != null) {  
            Bitmap photo = extras.getParcelable("data");  
            savePic(photo);
            photo=Tools.toRoundCorner(photo,7);
            Drawable drawable = new BitmapDrawable(this.getResources(),photo);  
            faceImage.setImageDrawable(drawable);  
        }  
    }  
    
    private void savePic(Bitmap photo ){
    	long l2 = System.currentTimeMillis();
	      	String fileName = l2 + ".jpg";
        String tempImgPath = getCacheDir().getAbsolutePath() + "/sysfiles/temp/" + fileName;
        String dir = getDir(tempImgPath);
		File dirFile = new File(dir);
		dirFile.mkdirs();
		if (!dirFile.exists()) {
			Toast.makeText(MyFaceActivity.this, "无法创建SD卡目录,图片无法保存", Toast.LENGTH_LONG).show();
		}
		try {
        	BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(tempImgPath));
        	photo.compress(Bitmap.CompressFormat.JPEG, 75, bos);// (0 - 100)压缩文件  
        	SharedPreferencesUtils.setStringValue(MyFaceActivity.this, SharedPreferencesUtils.PHOTO_PATH, tempImgPath);
        } catch (Exception e) {
			e.printStackTrace();
        }  
    }
    public  String getDir(String filePath) {
		int lastSlastPos = filePath.lastIndexOf('/');
		return filePath.substring(0, lastSlastPos);
	}
}

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