Android中获取TextView和EditText中的文本

Android中获取TextView和EditText中的文本
//建立对象
EditText tv1=(EditText) findViewById(R.id.name);
//获取文本
String name=tv1.getText().toString();

---

package com.save;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.RandomAccessFile;

import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends Activity {
private EditText editText1;
private Button button1;
String filePath = Environment.getExternalStorageDirectory() + “/save/”;
String fileName = “save.txt”;

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    initView();}private void initView() {    editText1 = (EditText) findViewById(R.id.editText1);    button1 = (Button) findViewById(R.id.button1);    button1.setOnClickListener(new OnClickListener() {        @Override        public void onClick(View v) {            writeTxtToFile(editText1.getText().toString().trim(), filePath, fileName);        }    });}// 将字符串写入到文本文件中public void writeTxtToFile(String strcontent, String filePath, String fileName) {    // 生成文件夹之后，再生成文件，不然会出错    makeFilePath(filePath, fileName);    String strFilePath = filePath + fileName;    // 每次写入时，都换行写    String strContent = strcontent + "\r\n";    try {        File file = new File(strFilePath);        if (!file.exists()) {            Log.d("TestFile", "Create the file:" + strFilePath);            file.getParentFile().mkdirs();            file.createNewFile();        }        RandomAccessFile raf = new RandomAccessFile(file, "rwd");        raf.seek(file.length());        raf.write(strContent.getBytes());        raf.close();    } catch (Exception e) {        e.printStackTrace();    }}// 生成文件public File makeFilePath(String filePath, String fileName) {    File file = null;    makeRootDirectory(filePath);    try {        file = new File(filePath + fileName);        if (!file.exists()) {            file.createNewFile();        }    } catch (Exception e) {        e.printStackTrace();    }    return file;}// 生成文件夹public static void makeRootDirectory(String filePath) {    File file = null;    try {        file = new File(filePath);        if (!file.exists()) {            file.mkdir();        }    } catch (Exception e) {        e.printStackTrace();    }}

}
添加这个权限