Android 頭像上傳 相機+相簿 繪製圓形頭像
阿新 • • 發佈：2019-01-04
老話常談，在開始之前來幾張圖，看看效果：
主介面：
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" app:layout_behavior="@string/appbar_scrolling_view_behavior" tools:showIn="@layout/activity_main" tools:context=".MainActivity"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:gravity="center"> <com.ynu.photo_upload.RoundImageView android:layout_width="150dp" android:layout_height="150dp" android:id="@+id/imageView" android:background="@android:color/transparent" android:layout_marginBottom="15dp"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center" android:layout_marginBottom="15dp"> <Button android:layout_width="100dp" android:layout_height="30dp" android:id="@+id/Camera" android:background="@drawable/tabtop1" android:text="拍照" android:onClick="submit_camera" android:layout_marginRight="35dp"/> <Button android:layout_width="100dp" android:layout_height="30dp" android:id="@+id/gallery" android:background="@drawable/tabtop1" android:onClick="submit_gallery" android:text="相簿"/> </LinearLayout> </LinearLayout> </LinearLayout><strong> </strong>
Tabtop1.xml bg樣式
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke
android:width="1dp"
android:color="#585858"/>
<corners
android:radius="25dp"/>
</shape>RoundImageView.java 自定義圓形繪製
package com.ynu.photo_upload; import android.content.Context; import android.graphics.Bitmap; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.PorterDuff; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.util.AttributeSet; import android.widget.ImageView; /** * Created by 江樹金 on 2016/4/12. */ public class RoundImageView extends ImageView { //重寫imageView設定為圓形 public RoundImageView(Context context) { super(context); } public RoundImageView(Context context, AttributeSet attrs) { super(context, attrs); } public RoundImageView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); } @Override protected void onDraw(Canvas canvas) { Drawable drawable = getDrawable(); if (drawable == null) { return; } if (getWidth() == 0 || getHeight() == 0) { return; } Bitmap b = ((BitmapDrawable)drawable).getBitmap(); if(null == b) { return; } Bitmap bitmap = b.copy(Bitmap.Config.ARGB_8888, true); int w = getWidth(), h = getHeight(); Bitmap roundBitmap = getCroppedBitmap(bitmap, w); canvas.drawBitmap(roundBitmap, 0,0, null); } public static Bitmap getCroppedBitmap(Bitmap bmp, int radius) { Bitmap sbmp; if(bmp.getWidth() != radius || bmp.getHeight() != radius) sbmp = Bitmap.createScaledBitmap(bmp, radius, radius, false); else sbmp = bmp; Bitmap output = Bitmap.createBitmap(sbmp.getWidth(), sbmp.getHeight(), Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(output); final int color = 0xffa19774; final Paint paint = new Paint(); final Rect rect = new Rect(0, 0, sbmp.getWidth(), sbmp.getHeight()); paint.setAntiAlias(true); paint.setFilterBitmap(true); paint.setDither(true); canvas.drawARGB(0, 0, 0, 0); paint.setColor(Color.parseColor("#BAB399")); canvas.drawCircle(sbmp.getWidth() / 2+0.7f, sbmp.getHeight() / 2+0.7f, sbmp.getWidth() / 2+0.1f, paint); paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN)); canvas.drawBitmap(sbmp, rect, rect, paint); return output; } }
MainActivity.java
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.RectF;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Parcelable;
import android.provider.MediaStore;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Base64;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;
import com.loopj.android.http.AsyncHttpClient;
import com.loopj.android.http.AsyncHttpResponseHandler;
import com.loopj.android.http.RequestParams;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
public class MainActivity extends AppCompatActivity {
private static int Camera_Request_Code=1;
private static int Gallery_Request_Code=2;
private static int Crop_Ruquest_Code=3;
private ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
imageView= (RoundImageView) findViewById(R.id.imageView);
imageView.setImageResource(R.drawable.non_lanuch);
}
public void submit_camera(View v){//相機點選事件
Intent intent=new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent,Camera_Request_Code);
}
public void submit_gallery(View v){//相簿點選事件
Intent intent1=new Intent(Intent.ACTION_GET_CONTENT);
intent1.setType("image/*");
startActivityForResult(intent1,Gallery_Request_Code);
}
/*SD卡目錄*/
private Uri BitMap(Bitmap bitmap){
File tmpDir=new File(Environment.getExternalStorageDirectory()+"/com.ynu.campusproject"); //儲存地址及命名
if (!tmpDir.exists()){
tmpDir.mkdir(); //生成目錄進行儲存
}
File img=new File(tmpDir.getAbsolutePath()+"upload.png");
try {
FileOutputStream fos=new FileOutputStream(img);
bitmap.compress(Bitmap.CompressFormat.PNG, 85, fos); //參:壓縮的格式，圖片質量85，輸出流
fos.flush();
fos.close();
return Uri.fromFile(img);
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
/*格式convert*/
private Uri convertUri(Uri uri){//將從相簿中取出的轉換格式
InputStream is=null;
try {
is=getContentResolver().openInputStream(uri);
Bitmap bitmap= BitmapFactory.decodeStream(is);
is.close();
return BitMap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
/*裁剪框大小設定*/
private void imagecut(Uri uri){
Intent intent=new Intent("com.android.camera.action.CROP");
intent.setDataAndType(uri,"image/*");//型別
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY",1);
intent.putExtra("outputX",150);
intent.putExtra("outputY",150);
intent.putExtra("return-data",true);
startActivityForResult(intent,Crop_Ruquest_Code);
}
//圓形Bitmap裁剪
public Bitmap toRoundBitmap(Bitmap bitmap){//引用方法
int width=bitmap.getWidth();
int height=bitmap.getHeight();
int r=0;
//取最短邊做邊長
if(width<height){
r=width;
}else{
r=height;
}
//構建一個bitmap
Bitmap backgroundBm=Bitmap.createBitmap(width,height, Bitmap.Config.ARGB_8888);
//new一個Canvas，在backgroundBmp上畫圖
Canvas canvas=new Canvas(backgroundBm);
Paint p=new Paint();
//設定邊緣光滑，去掉鋸齒
p.setAntiAlias(true);
RectF rect=new RectF(0, 0, r, r);
//通過制定的rect畫一個圓角矩形，當圓角X軸方向的半徑等於Y軸方向的半徑時，
//且都等於r/2時，畫出來的圓角矩形就是圓形
canvas.drawRoundRect(rect, r/2, r/2, p);
//設定當兩個圖形相交時的模式，SRC_IN為取SRC圖形相交的部分，多餘的將被去掉
p.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
//canvas將bitmap畫在backgroundBmp上
canvas.drawBitmap(bitmap, null, rect, p);
return backgroundBm;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode==Camera_Request_Code){//相機返回碼
if (data==null){
return;
}else {
Bundle extras=data.getExtras();
if (extras!=null){
Bitmap bm=extras.getParcelable("data");
bm=toRoundBitmap(bm);
Uri uri=BitMap(bm);
imagecut(uri); //呼叫該方法完成裁剪
}
}
}else if (requestCode==Gallery_Request_Code){//相簿返回碼
if (data==null){
return;
}
Uri uri;
uri=data.getData();
Uri fileuri=convertUri(uri);
imagecut(fileuri); //...
}
else if (requestCode==Crop_Ruquest_Code){//裁剪返回碼
if (data==null){
return;
}else {
Bundle extras1=data.getExtras();
Bitmap bm1=extras1.getParcelable("data");
bm1=toRoundBitmap(bm1);
imageView= (RoundImageView) findViewById(R.id.imageView);
imageView.setImageBitmap(bm1);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {//無關項
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {//無關項
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}直接拿去就可以，不用謝哦~ 下一篇將要完成如何對檔案進行上傳處理，後臺服務使用雲平臺
Demo下載：http://download.csdn.net/detail/u013000304/9492516