java.lang.RuntimeException的:无法恢复活动 [英] java.lang.RuntimeException: Unable to resume activity
问题描述
什么EM试图实现一个按钮的OB点击它应该打开..the使用点击一个单元的摄像头,并返回到应用程序与tubnail的点击PIC的图像视图 包com.example.waterbill;
进口java.io.ByteArrayOutputStream中;
进口的java.io.File;
进口java.io.FileOutputStream中;
进口java.io.IOException异常;
进口android.app.Activity;
进口android.content.Intent;
进口android.content.pm.ActivityInfo;
进口android.graphics.Bitmap;
进口android.os.Bundle;
进口android.os.Environment;
进口android.view.View;
进口android.widget.Button;
进口android.widget.EditText;
进口android.widget.ImageView;
进口android.widget.Toast;
公共类Bill_meter_satus延伸活动{
@覆盖
保护无效onResume(){
// TODO自动生成方法存根
super.onResume();
}
@覆盖
保护无效的onPause(){
// TODO自动生成方法存根
super.onPause();
}
按钮B1,B2;
的EditText edt1;
ImageView的mImage;
私有静态最终诠释CAMERA_PIC_REQUEST = 1888;
字符串值;
@覆盖
保护无效的onCreate(包savedInstanceState){
// TODO自动生成方法存根
super.onCreate(savedInstanceState);
的setContentView(R.layout.bill_meter_sat);
B1 =(按钮)findViewById(R.id.button1);
B2 =(按钮)findViewById(R.id.button2);
edt1 =(EditText上)findViewById(R.id.editText1);
捆绑额外= getIntent()getExtras()。
如果(额外的!= NULL){
值= extra.getString(Cons_ code);
edt1.setText(值);
Toast.makeText(Bill_meter_satus.this,价值观,Toast.LENGTH_SHORT)
。显示();
}
// onliclick按钮caputre瞬间 b2.setOnClickListener(新View.OnClickListener(){
@覆盖
公共无效的onClick(查看为arg0){
// TODO自动生成方法存根
意向意图=新的意图(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(意向,CAMERA_PIC_REQUEST);
}
});
b1.setOnClickListener(新View.OnClickListener(){
//在点击按钮移动到下一个活动
@覆盖
公共无效的onClick(视图v){
// TODO自动生成方法存根
接下来的意图=新的意图(
com.example.waterbill.Bill_meter_status_normal);
next.putExtra(Cons_ code,值);
startActivity(下);
}
});
}
保护无效onActivityResult(INT申请code,INT结果code,意图数据){
如果(结果code!= RESULT_CANCELED){
如果(要求code == CAMERA_PIC_REQUEST){
// 2
。位图的缩略图=(位图)data.getExtras()获得(数据);
mImage.setImageBitmap(缩略图);
// 3
ByteArrayOutputStream字节=新ByteArrayOutputStream();
thumbnail.com preSS(Bitmap.Com pressFormat.JPEG,100个字节);
// 4
档案文件=新的文件(Environment.getExternalStorageDirectory()
+文件分割符+image.jpg文件);
尝试 {
file.createNewFile();
FileOutputStream中FO =新的FileOutputStream(文件);
// 5
fo.write(bytes.toByteArray());
fo.close();
}赶上(IOException异常E){
// TODO自动生成的catch块
e.printStackTrace();
}
}
}
}
}
logcat的
7月9日至四号:26:47.051:E / AndroidRuntime(12992):致命异常:主要
7月9号至4号:26:47.051:E / AndroidRuntime(12992):java.lang.RuntimeException的:不提供结果ResultInfo {谁= NULL,请求= 1888,结果= -1,数据=意向{行为=直列数据DAT =内容://媒体/外部/图片/媒体/ 18169 =典型图像/ JPEG(有临时演员)}}到活动{com.example.waterbill / com.example.waterbill.Bill_meter_satus}:显示java.lang.NullPointerException
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.app.ActivityThread.deliverResults(ActivityThread.java:3007)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.app.ActivityThread.handleSendResult(ActivityThread.java:3050)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.app.ActivityThread.access $ 1100(ActivityThread.java:127)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1188)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.os.Handler.dispatchMessage(Handler.java:99)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.os.Looper.loop(Looper.java:137)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.app.ActivityThread.main(ActivityThread.java:4448)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在java.lang.reflect.Method.invokeNative(本机方法)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在java.lang.reflect.Method.invoke(Method.java:511)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:823)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在dalvik.system.NativeStart.main(本机方法)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):由:显示java.lang.NullPointerException
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在com.example.waterbill.Bill_meter_satus.onActivityResult(Bill_meter_satus.java:88)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.app.Activity.dispatchActivityResult(Activity.java:4649)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):在android.app.ActivityThread.deliverResults(ActivityThread.java:3003)
7月9号至4号:26:47.051:E / AndroidRuntime(12992):11 ...更多
由于LogCat中说:
07:26:47.051:E / AndroidRuntime(12992):由:显示java.lang.NullPointerException 09-04
是 NullPointerException异常
。我没有看到你初始化 mImage
。您必须在的onCreate()
方法进行初始化。
将此code段为的onCreate()
方法。
mImage =(ImageView的)findViewById(R.id.yourImageViewId);
what em trying to achieve is ob click of a button it should open the camera ..the use clicks a snap and it returns back to the app with tubnail of the clicked pic in the image view package com.example.waterbill;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
public class Bill_meter_satus extends Activity {
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
}
@Override
protected void onPause() {
// TODO Auto-generated method stub
super.onPause();
}
Button b1, b2;
EditText edt1;
ImageView mImage;
private static final int CAMERA_PIC_REQUEST = 1888;
String values;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.bill_meter_sat);
b1 = (Button) findViewById(R.id.button1);
b2 = (Button) findViewById(R.id.button2);
edt1 = (EditText) findViewById(R.id.editText1);
Bundle extra = getIntent().getExtras();
if (extra != null) {
values = extra.getString("Cons_Code");
edt1.setText(values);
Toast.makeText(Bill_meter_satus.this, values, Toast.LENGTH_SHORT)
.show();
}
//onliclick of the button caputre a snap b2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, CAMERA_PIC_REQUEST);
}
});
b1.setOnClickListener(new View.OnClickListener() {
//on click of button move to next activity
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent next = new Intent(
"com.example.waterbill.Bill_meter_status_normal");
next.putExtra("Cons_Code", values);
startActivity(next);
}
});
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_CANCELED) {
if (requestCode == CAMERA_PIC_REQUEST) {
// 2
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
mImage.setImageBitmap(thumbnail);
// 3
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
// 4
File file = new File(Environment.getExternalStorageDirectory()
+ File.separator + "image.jpg");
try {
file.createNewFile();
FileOutputStream fo = new FileOutputStream(file);
// 5
fo.write(bytes.toByteArray());
fo.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
LOGCAT
09-04 07:26:47.051: E/AndroidRuntime(12992): FATAL EXCEPTION: main
09-04 07:26:47.051: E/AndroidRuntime(12992): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1888, result=-1, data=Intent { act=inline-data dat=content://media/external/images/media/18169 typ=image/jpeg (has extras) }} to activity {com.example.waterbill/com.example.waterbill.Bill_meter_satus}: java.lang.NullPointerException
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.app.ActivityThread.deliverResults(ActivityThread.java:3007)
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3050)
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.app.ActivityThread.access$1100(ActivityThread.java:127)
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1188)
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.os.Handler.dispatchMessage(Handler.java:99)
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.os.Looper.loop(Looper.java:137)
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.app.ActivityThread.main(ActivityThread.java:4448)
09-04 07:26:47.051: E/AndroidRuntime(12992): at java.lang.reflect.Method.invokeNative(Native Method)
09-04 07:26:47.051: E/AndroidRuntime(12992): at java.lang.reflect.Method.invoke(Method.java:511)
09-04 07:26:47.051: E/AndroidRuntime(12992): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
09-04 07:26:47.051: E/AndroidRuntime(12992): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
09-04 07:26:47.051: E/AndroidRuntime(12992): at dalvik.system.NativeStart.main(Native Method)
09-04 07:26:47.051: E/AndroidRuntime(12992): Caused by: java.lang.NullPointerException
09-04 07:26:47.051: E/AndroidRuntime(12992): at com.example.waterbill.Bill_meter_satus.onActivityResult(Bill_meter_satus.java:88)
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.app.Activity.dispatchActivityResult(Activity.java:4649)
09-04 07:26:47.051: E/AndroidRuntime(12992): at android.app.ActivityThread.deliverResults(ActivityThread.java:3003)
09-04 07:26:47.051: E/AndroidRuntime(12992): ... 11 more
As LogCat said:
07:26:47.051: E/AndroidRuntime(12992): Caused by: java.lang.NullPointerException 09-04
It is NullPointerException
. I don't see that you initialize your mImage
. You must initialize it in onCreate()
method.
Add this code snippet to onCreate()
method.
mImage = (ImageView)findViewById(R.id.yourImageViewId);
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