如何使用共享首选项保存数据？
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我是android应用程序的新开发人员。我使用共享首选项概念将数据从一个活动共享到另一个活动。我实现了以下代码
Main.java
public class Main extends Activity
{
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TableLayout table=(TableLayout)findViewById(R.id.tableLayout1);
table.removeAllViews();
String sName = null;
for(int i=0;i<10;i++)
{
TableRow row=new TableRow(Main.this);
row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));
TextView name=new TextView(Main.this);
name.setText(\" HAI PRASAD\"+i);
sName=name.getText().toString();
Log.v(\"sName 1111111\",\"-->\"+sName);
getSharedPreferences(\"Values\", 0).edit().putString(\"NAMES\",sName).commit();
name.setGravity(Gravity.LEFT);
name.setTypeface(Typeface.MONOSPACE);
row.addView(name);
table.addView(row);
}
((Button)findViewById(R.id.button1)).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent it=new Intent(Main.this,Main2.class);
startActivity(it);
}
});
}
TextView name=new TextView(Main.this);
name.setText(\" HAI PRASAD\"+i);
sName=name.getText().toString();
Log.v(\"sName 1111111\",\"-->\"+sName);
getSharedPreferences(\"Values\", 0).edit().putString(\"NAMES\",sName).commit();
public class Main2 extends Activity
{
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main2);
String name=getSharedPreferences(\"Values\", 0).getString(\"NAMES\", \"\");
((TextView)findViewById(R.id.textView1)).setText(name);
}
没有找到相关结果
已邀请:
1 个回复
惜堡沁戚
for (int i = 0; i < 10; i++) { getSharedPreferences(\"Values\" + i, 0).edit().putString(\"Key\" + i, \"STring\" + i); } for (int i = 0; i < 10; i++) { getSharedPreferences(\"Values\" + i, 0).getString(\"Key\" + i, \"\"); }