Android Stdio的学习 3

今天又学习了一些关于Android Stdio的知识。

1、butten按钮

<?xml version="1.0" encoding="utf-8"?>
<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"
    android:padding="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    >
  <Button
      android:id="@+id/btn"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="EditText"/>
    <Button
        android:id="@+id/btn2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="button2"
        android:layout_below="@+id/btn"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        />


</RelativeLayout>

　　2、Intent跳转页面

package com.mingrisoft;

import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.View;


public class MainActivity extends ActionBarActivity implements View.OnClickListener {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
          initUI();
    }
    private void initUI()
    {
        findViewById(R.id.btn).setOnClickListener(this);
    }
    @Override
    public void onClick(View view)
    {
        switch (view.getId()){
            case R.id.btn:
                Intent intent = new Intent();
                intent.setClass(getApplicationContext(),EditTextActivity.class);
                break;
    }

            }

    }

　　

package com.mingrisoft;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class EditTextActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_edit_text);



    }

}

　　

<?xml version="1.0" encoding="utf-8"?>
<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"
    android:padding="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    >
  <Button
      android:id="@+id/btn"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="EditText"/>
    <Button
        android:id="@+id/btn2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="button2"
        android:layout_below="@+id/btn"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        />


</RelativeLayout>

　　

<?xml version="1.0" encoding="utf-8"?>
<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.mingrisoft.EditTextActivity">
    <RelativeLayout
        android:layout_width="130dp"
        android:layout_height="120dp"
       android:background="#000000"
        ></RelativeLayout>


</RelativeLayout>