关于应用打开word、pdf

activity_main.xml:
 
Java代码  收藏代码
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    xmlns:tools="http://schemas.android.com/tools"  
    android:layout_width="match_parent"  
    android:layout_height="match_parent"  
     >  
  
    <Button  
        android:id="@+id/btn_open_word"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:layout_centerHorizontal="true"  
        android:layout_centerVertical="true"  
        android:text="打开word" />  
      
    <Button  
        android:id="@+id/btn_open_pdf"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:layout_centerHorizontal="true"  
        android:layout_centerVertical="true"  
        android:layout_below="@+id/btn_open_word"  
        android:text="打开pdf" />  
  
</RelativeLayout>  
 
MainActivity.java:
 
Java代码  收藏代码
public class MainActivity extends Activity {  
  
    private static final String TAG = "MainActivity";  
      
    private Button btnOpenWord;  
    private Button btnOpenPdf;  
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);  
          
        btnOpenWord = (Button)findViewById(R.id.btn_open_word);  
        btnOpenPdf = (Button)findViewById(R.id.btn_open_pdf);  
          
        btnOpenWord.setOnClickListener(new OnClickListener() {  
              
            @Override  
            public void onClick(View v) {  
                  
                File file = new File(getSDPath()+"/***.doc");//这里更改为你的名称  
  
                Log.e(TAG, "file exsit："+file.getPath());  
                  
                if (file.exists()) {  
                    Uri path = Uri.fromFile(file);  
                    Intent intent = new Intent(Intent.ACTION_VIEW);  
                    intent.setDataAndType(path, "application/msword");  
                    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);  
  
                    try {  
                        startActivity(intent);  
                    }   
                    catch (ActivityNotFoundException e) {  
                        Toast.makeText(MainActivity.this,   
                            "No Application Available to View WORD",   
                            Toast.LENGTH_SHORT).show();  
                    }  
                }  
            }  
        });  
          
        btnOpenPdf.setOnClickListener(new OnClickListener() {  
            @Override  
            public void onClick(View v) {  
                File file = new File(getSDPath()+"/***.pdf");//这里更改为你的名称  
  
                Log.e(TAG, "file exsit："+file.exists());  
                  
                if (file.exists()) {  
                    Uri path = Uri.fromFile(file);  
                    Intent intent = new Intent(Intent.ACTION_VIEW);  
                    intent.setDataAndType(path, "application/pdf");  
                    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);  
  
                    try {  
                        startActivity(intent);  
                    }   
                    catch (ActivityNotFoundException e) {  
                        Toast.makeText(MainActivity.this,   
                            "No Application Available to View PDF",   
                            Toast.LENGTH_SHORT).show();  
                    }  
                }  
            }  
        });  
    }  
  
    /**  
     * 获取sd卡路径  
     *   
     * */  
    private String getSDPath(){  
          
           File sdDir = null;  
           boolean sdCardExist = android.os.Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());//判断sd卡是否存在  
           if(sdCardExist){  
                 
              sdDir = Environment.getExternalStorageDirectory();//获取目录  
           }    
             
           Log.e(TAG, "sdCard:"+sdDir.toString());  
           return sdDir.toString();  
    }   
  
}  

当然不要忘了添加相关读取sd卡的权限否则打不开哦！

下面写个例子吧在网络上下载word文档并放到sd卡里面在通过三方打开

下面是通过代码android-async-http这个三方下载的蛮好用的等会我会上传代码不用积分里面就有这个

private Button bt;


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bt=(Button) findViewById(R.id.bt);
bt.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
btn();
}
});
}
private void btn() {
// 下载
FinalHttp finalHttp = new FinalHttp();
finalHttp
.download(
"http://119.37.192.234:9079/JDZJ/Resource/988202f2-5161-4bb5-a055-b89b328d620b.doc",
Environment.getExternalStorageDirectory().getPath()
+ "/TJCX/"+"asdf.docx", new AjaxCallBack<File>() {
@Override
public void onStart() {
super.onStart();
}

@Override
public void onLoading(long count, long current) {
System.out.println(current + "~~~");
super.onLoading(count, current);
}

@Override
public void onSuccess(File t) {
super.onSuccess(t);
}

@Override
public void onFailure(Throwable t, int errorNo,
String strMsg) {
super.onFailure(t, errorNo, strMsg);
}
});
}

通过这个方式下载下来的文件 finalHttp.download(String url，String path);这个就是用来下载的第一个参数是下载地址，第二个参数是下载存放在手机的位置

Environment.getExternalStorageDirectory().getPath()+ "/TJCX/"+"asdf.docx",这就是我存放的位置了

Environment.getExternalStorageDirectory().getPath()--------------------->手机根目录

 /TJCX/------------------------------------------------------------------------------------>根目录下的TJCX文件夹下

asdf.docx--------------------------------------------------------------------------------->这个是给下载下来的文件命名以及后缀了

同样按照上面的进行打开就可以了

打开word文档

下载word文档