startActivityForResult()不调用的onActivityResult(INT申请code,INT结果code,意图数据)? [英] startActivityForResult() dont call to onActivityResult(int requestCode, int resultCode, Intent data)?
问题描述
我学习Android和我是一个初学者,
我试图让一个图片,并把它转化为我的ImageView,
但在调试模式下我看到的应用程序执行该行:
startActivityForResult(ⅰ,camdata);
带我到凸轮窗口后,我得到它的PIC问我保存图片,我保存它。
该注意到发生后 - 我的意思是我不达到该行的onActivityResult(INT申请code,INT结果code,意图数据)。
为什么?
在code:
包com.thenewboston.elyakim;进口java.io.IOException异常;
进口的java.io.InputStream;进口android.app.Activity;
进口android.content.Intent;
进口android.graphics.Bitmap;
进口android.graphics.BitmapFactory;
进口android.os.Bundle;
进口android.view.View;
进口android.view.View.OnClickListener;
进口android.widget.Button;
进口android.widget.ImageButton;
进口android.widget.ImageView;公共类凸轮扩展活动实现OnClickListener { 的ImageButton IB;
按钮B;
ImageView的IV;
我的意图;
最终静态INT camdata = 0;
BMP位图; @覆盖
保护无效的onCreate(捆绑savedInstanceState){
// TODO自动生成方法存根
super.onCreate(savedInstanceState);
的setContentView(R.layout.photo);
初始化();
InputStream的IS1 = getResources()openRawResource(R.drawable.ic_launcher)。
BMP = BitmapFactory.de codeStream(IS1); }
私人无效初始化(){
// TODO自动生成方法存根
IV =(ImageView的)findViewById(R.id.imageView1);
IB =(的ImageButton)findViewById(R.id.imageButton1);
B =(按钮)findViewById(R.id.button1);
b.setOnClickListener(本);
ib.setOnClickListener(本);
}
公共无效的onClick(查看为arg0){
// TODO自动生成方法存根
开关(arg0.getId()){
案例R.id.button1:
尝试{
getApplicationContext()setWallpaper(BMP)。
}赶上(IOException异常五){
// TODO自动生成catch块
e.printStackTrace();
}
打破; 案例R.id.imageButton1:
I =新意图(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(ⅰ,camdata);
打破; } }
@覆盖
保护无效的onActivityResult(INT申请code,INT结果code,意图数据){
// TODO自动生成方法存根
super.onActivityResult(要求code,结果code,数据);
如果(要求code == RESULT_OK){
捆绑额外= data.getExtras();
BMP =(位图)extras.get(数据);
iv.setImageBitmap(BMP);
}
}
}
如果(要求code == RESULT_OK){
捆绑额外= data.getExtras();
BMP =(位图)extras.get(数据);
iv.setImageBitmap(BMP);
}
必须
如果(要求code == camdata){
如果(结果code == RESULT_OK){
iv.setImageUri(Uri.parse(data.getDataString()));
}
}
上述显示所选择的图像中的imageview的
i learn android and i am a beginner, i tried to get a pic and turn it to my imageview, but in debug mode i see that app execute the line : startActivityForResult(i,camdata); bring me to the cam window and after i get pic it ask me to save the pic and i save it. after that noting happen - i mean i dont reach the line onActivityResult(int requestCode, int resultCode, Intent data). why? the code:
package com.thenewboston.elyakim;
import java.io.IOException;
import java.io.InputStream;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
public class Cam extends Activity implements OnClickListener{
ImageButton ib;
Button b;
ImageView iv;
Intent i;
final static int camdata = 0;
Bitmap bmp ;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.photo);
initialize();
InputStream is1 = getResources().openRawResource(R.drawable.ic_launcher);
bmp = BitmapFactory.decodeStream(is1);
}
private void initialize() {
// TODO Auto-generated method stub
iv = (ImageView) findViewById(R.id.imageView1);
ib = (ImageButton) findViewById(R.id.imageButton1);
b = (Button) findViewById(R.id.button1);
b.setOnClickListener(this);
ib.setOnClickListener(this);
}
public void onClick(View arg0) {
// TODO Auto-generated method stub
switch (arg0.getId()){
case R.id.button1:
try {
getApplicationContext().setWallpaper(bmp);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
break;
case R.id.imageButton1:
i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i,camdata);
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==RESULT_OK){
Bundle extras = data.getExtras();
bmp = (Bitmap) extras.get("data");
iv.setImageBitmap(bmp);
}
}
}
if(requestCode==RESULT_OK){
Bundle extras = data.getExtras();
bmp = (Bitmap) extras.get("data");
iv.setImageBitmap(bmp);
}
must be
if(requestCode==camdata){
if(resultCode==RESULT_OK){
iv.setImageUri(Uri.parse(data.getDataString()));
}
}
the above displays the selected image in the imageview
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