小编Pur*_*nce的帖子

好吧我正在制作一个Android应用程序,并使用CAPTURE_PIC_REQUEST拍摄照片并将其作为预览存储在屏幕上的imageviewer中.我想知道如何获取Uri和实际路径,因为我计划获取该信息,保存并稍后访问它.所以我无法想象如何从我刚刚拍摄的那张照片中获取Uri或路径名称.这是我正在处理的活动的代码

package com.CS480;

import java.io.File;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class AddEx extends Activity {
  static final int CAMERA_PIC_REQUEST = 1337; 
  public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.add);

    Button camera = (Button) findViewById(R.id.picButton);
    camera.setOnClickListener(new View.OnClickListener() {

        public void onClick(View v) {
            Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);               
        }               
    });

}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // TODO Auto-generated method stub
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode …

所以我刚刚为eclipse安装了Android SDK和ADT插件,遇到了问题.

当我转到main.xml中的图形布局时,没有显示布局.相反,我只是得到这个错误

    $java.lang.NullPointerException
at sun.awt.FontConfiguration.getInitELC(Unknown Source)
at sun.awt.FontConfiguration.initFontConfig(Unknown Source)
at sun.awt.FontConfiguration.<init>(Unknown Source)
at sun.awt.windows.WFontConfiguration.<init>(Unknown Source)
at sun.awt.Win32GraphicsEnvironment.createFontConfiguration(Unknown Source)
at sun.java2d.SunGraphicsEnvironment$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.java2d.SunGraphicsEnvironment.<init>(Unknown Source)
at sun.awt.Win32GraphicsEnvironment.<init>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(Unknown Source)
at sun.font.FontDesignMetrics.getDefaultFrc(Unknown Source)
at sun.font.FontDesignMetrics.getMetrics(Unknown Source)
at sun.awt.SunToolkit.getFontMetrics(Unknown Source)
at sun.awt.windows.WToolkit.getFontMetrics(Unknown Source)
at android.graphics.Paint_Delegate.updateFontObject(Paint_Delegate.java:1062)
at android.graphics.Paint_Delegate.reset(Paint_Delegate.java:1039)
at android.graphics.Paint_Delegate.<init>(Paint_Delegate.java:991)
at android.graphics.Paint_Delegate.native_init(Paint_Delegate.java:614)
at android.graphics.Paint.native_init(Paint.java)
at android.graphics.Paint.<init>(Paint.java:194)
at android.graphics.Paint.<init>(Paint.java:184)
at android.view.ViewGroup.<init>(ViewGroup.java:278) …