init

feixiao · feixiao · commit e5ebf0db2716 · 2023-02-14T16:55:38.000+08:00
diff --git a/AppProgrammingSource/Navigator/ActivityNameConstants.java b/AppProgrammingSource/Navigator/ActivityNameConstants.java
@@ -0,0 +1,7 @@
+package com.example.navigator;
+
+public class ActivityNameConstants {
+	public final static String SecondActivity 
+		= "com.example.navigator.SecondActivity";
+}
+
diff --git a/AppProgrammingSource/Navigator/BaseActivity.java b/AppProgrammingSource/Navigator/BaseActivity.java
@@ -0,0 +1,25 @@
+package com.example.navigator;
+
+import android.app.Activity;
+import android.content.Intent;
+
+public abstract class BaseActivity extends Activity {
+
+	public void navigateTo(final String activityName, 
+			final Intent intent) {
+		
+		//�����λ��ִ��ҳ����Ĳ���������������õ�activityName
+		
+		Class<?> clazz = null;
+		try {
+			clazz = Class.forName(activityName);
+			if (clazz != null) {
+				intent.setClass(this, clazz);
+				this.startActivity(intent);
+			}
+		} catch (final ClassNotFoundException e) {
+			return;
+		}
+	}
+}
+
diff --git a/AppProgrammingSource/Navigator/MainActivity.java b/AppProgrammingSource/Navigator/MainActivity.java
@@ -0,0 +1,46 @@
+package com.example.navigator;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.View;
+import android.widget.Button;
+
+public class MainActivity extends BaseActivity {
+
+	Button btnNav1, btnNav2;
+
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_main);
+
+		btnNav1 = (Button) findViewById(R.id.btnNav1);
+		btnNav1.setOnClickListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View v) {
+				Intent intent = new Intent(MainActivity.this,
+						SecondActivity.class);
+				startActivity(intent);
+			}
+		});
+
+		btnNav2 = (Button) findViewById(R.id.btnNav2);
+		btnNav2.setOnClickListener(new View.OnClickListener() {
+			@Override
+			public void onClick(View v) {
+				Intent intent = new Intent();
+				intent.putExtra("name", "Jianqiang");
+				navigateTo(ActivityNameConstants.SecondActivity, intent);
+			}
+		});
+	}
+
+	@Override
+	public boolean onCreateOptionsMenu(Menu menu) {
+		// Inflate the menu; this adds items to the action bar if it is present.
+		getMenuInflater().inflate(R.menu.activity_main, menu);
+		return true;
+	}
+
+}
diff --git a/AppProgrammingSource/Navigator/SecondActivity.java b/AppProgrammingSource/Navigator/SecondActivity.java
@@ -0,0 +1,28 @@
+package com.example.navigator;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.Menu;
+import android.widget.TextView;
+
+public class SecondActivity extends Activity {
+
+	TextView tv;
+	
+	@Override
+	protected void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(R.layout.activity_second);
+		
+		Bundle bundle = getIntent().getExtras();
+		String name = bundle.getString("name");
+	}
+
+	@Override
+	public boolean onCreateOptionsMenu(Menu menu) {
+		// Inflate the menu; this adds items to the action bar if it is present.
+		getMenuInflater().inflate(R.menu.activity_sceond, menu);
+		return true;
+	}
+
+}
